diff --git a/arch/arm/src/a1x/a1x_boot.c b/arch/arm/src/a1x/a1x_boot.c
index 1dc27fd6365..95bfc97aa1a 100644
--- a/arch/arm/src/a1x/a1x_boot.c
+++ b/arch/arm/src/a1x/a1x_boot.c
@@ -124,7 +124,7 @@ static const struct section_mapping_s section_mapping[] =
 /****************************************************************************
  * Name: a1x_setupmappings
  *
- * Description
+ * Description:
  *   Map all of the initial memory regions defined in section_mapping[]
  *
  ****************************************************************************/
diff --git a/arch/arm/src/a1x/a1x_serial.c b/arch/arm/src/a1x/a1x_serial.c
index 307dac2d5e0..0a91003a28a 100644
--- a/arch/arm/src/a1x/a1x_serial.c
+++ b/arch/arm/src/a1x/a1x_serial.c
@@ -710,7 +710,7 @@ static inline void up_enablebreaks(struct up_dev_s *priv, bool enable)
 /************************************************************************************
  * Name: a1x_uart0config, uart1config, uart2config, ..., uart7config
  *
- * Descrption:
+ * Description:
  *   Configure the UART
  *
  ************************************************************************************/
@@ -886,7 +886,7 @@ static inline void a1x_uart7config(void)
 /************************************************************************************
  * Name: a1x_uartdl
  *
- * Descrption:
+ * Description:
  *   Select a divider to produce the BAUD from the UART PCLK.
  *
  *     BAUD = PCLK / (16 * DL), or
diff --git a/arch/arm/src/arm/up_prefetchabort.c b/arch/arm/src/arm/up_prefetchabort.c
index ab97efd5737..7fc02b11df3 100644
--- a/arch/arm/src/arm/up_prefetchabort.c
+++ b/arch/arm/src/arm/up_prefetchabort.c
@@ -69,7 +69,7 @@
 /****************************************************************************
  * Name: up_prefetchabort
  *
- * Description;
+ * Description:
  *   This is the prefetch abort exception handler. The ARM prefetch abort
  *   exception occurs when a memory fault is detected during an an
  *   instruction fetch.
diff --git a/arch/arm/src/armv7-a/arm_prefetchabort.c b/arch/arm/src/armv7-a/arm_prefetchabort.c
index 0bb8cd37932..a10f703287c 100644
--- a/arch/arm/src/armv7-a/arm_prefetchabort.c
+++ b/arch/arm/src/armv7-a/arm_prefetchabort.c
@@ -57,7 +57,7 @@
 /****************************************************************************
  * Name: arm_prefetchabort
  *
- * Description;
+ * Description:
  *   This is the prefetch abort exception handler. The ARM prefetch abort
  *   exception occurs when a memory fault is detected during an an
  *   instruction fetch.
diff --git a/arch/arm/src/armv7-r/arm_prefetchabort.c b/arch/arm/src/armv7-r/arm_prefetchabort.c
index 74713f5ad3e..7d5fd7cd86a 100644
--- a/arch/arm/src/armv7-r/arm_prefetchabort.c
+++ b/arch/arm/src/armv7-r/arm_prefetchabort.c
@@ -54,7 +54,7 @@
 /****************************************************************************
  * Name: arm_prefetchabort
  *
- * Description;
+ * Description:
  *   This is the prefetch abort exception handler. The ARM prefetch abort
  *   exception occurs when a memory fault is detected during an an
  *   instruction fetch.
diff --git a/arch/arm/src/bcm2708/bcm_boot.c b/arch/arm/src/bcm2708/bcm_boot.c
index a73dbf5e667..7dbc32cb812 100644
--- a/arch/arm/src/bcm2708/bcm_boot.c
+++ b/arch/arm/src/bcm2708/bcm_boot.c
@@ -104,7 +104,7 @@ static inline void bcm_set_level1entry(uint32_t paddr, uint32_t vaddr,
 /****************************************************************************
  * Name: bcm_setupmappings
  *
- * Description
+ * Description:
  *   Map all of the initial memory regions defined in g_section_mapping[]
  *
  ****************************************************************************/
diff --git a/arch/arm/src/c5471/c5471_ethernet.c b/arch/arm/src/c5471/c5471_ethernet.c
index f38497a37ed..b92f2f20948 100644
--- a/arch/arm/src/c5471/c5471_ethernet.c
+++ b/arch/arm/src/c5471/c5471_ethernet.c
@@ -439,7 +439,7 @@ static void c5471_macassign(struct c5471_driver_s *priv);
 /****************************************************************************
  * Name: c5471_dumpbuffer
  *
- * Description
+ * Description:
  *   Debug only
  *
  ****************************************************************************/
@@ -461,7 +461,7 @@ static inline void c5471_dumpbuffer(const char *msg, const uint8_t *buffer,
 /****************************************************************************
  * Name: c5471_mdtxbit
  *
- * Description
+ * Description:
  *   A helper routine used when serially communicating with the c547X's
  *   external ethernet transeiver device. GPIO pins are connected to the
  *   transeiver's MDCLK and MDIO pins and are used to accomplish the serial
@@ -528,7 +528,7 @@ static void c5471_mdtxbit (int bit_state)
 /****************************************************************************
  * Name: c5471_mdrxbit
  *
- * Description
+ * Description:
  *    A helper routine used when serially communicating with the c547X's
  *    external ethernet transeiver device. GPIO pins are connected to the
  *    transeiver's MDCLK and MDIO pins and are used to accomplish the serial
@@ -589,7 +589,7 @@ static int c5471_mdrxbit (void)
 /****************************************************************************
  * Name: c5471_mdwrite
  *
- * Description
+ * Description:
  *    A helper routine used when serially communicating with the c547X's
  *    external ethernet transeiver device. GPIO pins are connected to the
  *    transeiver's MDCLK and MDIO pins and are used to accomplish the serial
@@ -651,7 +651,7 @@ static void c5471_mdwrite (int adr, int reg, int data)
 /****************************************************************************
  * Name: c5471_mdread
  *
- * Description
+ * Description:
  *    A helper routine used when serially communicating with the c547X's
  *    external ethernet transeiver device. GPIO pins are connected to the
  *    transeiver's MDCLK and MDIO pins and are used to accomplish the serial
@@ -716,7 +716,7 @@ static int c5471_mdread (int adr, int reg)
 /****************************************************************************
  * Name: c5471_phyinit
  *
- * Description
+ * Description:
  *   The c547X EVM board uses a Lucent LU3X31T-T64 transeiver device to
  *   handle the physical layer (PHY). It's a h/w block that on the one end
  *   offers a Media Independent Interface (MII) which is connected to the
@@ -820,7 +820,7 @@ static int c5471_phyinit (void)
 /****************************************************************************
  * Name: c5471_inctxcpu
  *
- * Description
+ * Description:
  *
  ****************************************************************************/
 
@@ -843,7 +843,7 @@ static inline void c5471_inctxcpu(struct c5471_driver_s *priv)
 /****************************************************************************
  * Name: c5471_incrxcpu
  *
- * Description
+ * Description:
  *
  ****************************************************************************/
 
@@ -2073,7 +2073,7 @@ static int c5471_rmmac(struct net_driver_s *dev, FAR const uint8_t *mac)
 /****************************************************************************
  * Name: c5471_eimreset
  *
- * Description
+ * Description:
  *   The C547x docs states that a module should generally be reset according
  *   to the following algorithm:
  *
@@ -2121,7 +2121,7 @@ static void c5471_eimreset (struct c5471_driver_s *priv)
 /****************************************************************************
  * Name: c5471_eimconfig
  *
- * Description
+ * Description:
  *    Assumes that all registers are currently in the power-up reset state.
  *    This routine then modifies that state to provide our specific ethernet
  *    configuration.
@@ -2332,7 +2332,7 @@ static void c5471_eimconfig(struct c5471_driver_s *priv)
 /****************************************************************************
  * Name: c5471_reset
  *
- * Description
+ * Description:
  *
  ****************************************************************************/
 
@@ -2352,7 +2352,7 @@ static void c5471_reset(struct c5471_driver_s *priv)
 /****************************************************************************
  * Name: c5471_macassign
  *
- * Description
+ * Description:
  *    Set the mac address of our CPU ether port so that when the SWITCH
  *    receives packets from the PROMISCUOUS ENET0 it will switch them to the
  *    CPU port and cause a packet arrival event on the Switch's CPU TX queue
diff --git a/arch/arm/src/efm32/efm32_adc.c b/arch/arm/src/efm32/efm32_adc.c
index a1224e2d754..abe463ca375 100644
--- a/arch/arm/src/efm32/efm32_adc.c
+++ b/arch/arm/src/efm32/efm32_adc.c
@@ -847,9 +847,9 @@ static void adc_hw_reset(struct efm32_dev_s *priv, bool reset)
 /****************************************************************************
  * Name: adc_enable
  *
- * Description    : Enables or disables the specified ADC peripheral.
- *                  Also, starts a conversion when the ADC is not
- *                  triggered by timers
+ * Description:
+ *   Enables or disables the specified ADC peripheral.  Also, starts a
+ *   conversion when the ADC is not triggered by timers
  *
  * Input Parameters:
  *
diff --git a/arch/arm/src/imx6/imx_boot.c b/arch/arm/src/imx6/imx_boot.c
index 6abc6f8b157..f48b3e70a28 100644
--- a/arch/arm/src/imx6/imx_boot.c
+++ b/arch/arm/src/imx6/imx_boot.c
@@ -91,7 +91,7 @@ extern uint32_t _vector_end;   /* End+1 of vector block */
 /****************************************************************************
  * Name: imx_setupmappings
  *
- * Description
+ * Description:
  *   Map all of the initial memory regions defined in g_section_mapping[]
  *
  ****************************************************************************/
@@ -115,7 +115,7 @@ static inline void imx_setupmappings(void)
 /****************************************************************************
  * Name: imx_remap
  *
- * Description
+ * Description:
  *   Map all of the final memory regions defined in g_operational_mapping[]
  *
  ****************************************************************************/
diff --git a/arch/arm/src/lpc11xx/lpc11_serial.c b/arch/arm/src/lpc11xx/lpc11_serial.c
index 941a4475b4b..4799e4ed514 100644
--- a/arch/arm/src/lpc11xx/lpc11_serial.c
+++ b/arch/arm/src/lpc11xx/lpc11_serial.c
@@ -362,7 +362,7 @@ static inline void lpc11_uart0config(void)
 /************************************************************************************
  * Name: lpc11_uartdl
  *
- * Descrption:
+ * Description:
  *   Select a divider to produce the BAUD from the UART PCLK.
  *
  *     BAUD = PCLK / (16 * DL), or
diff --git a/arch/arm/src/lpc17xx/lpc17_serial.c b/arch/arm/src/lpc17xx/lpc17_serial.c
index 9c13a06d4a1..f6a7fabbb9a 100644
--- a/arch/arm/src/lpc17xx/lpc17_serial.c
+++ b/arch/arm/src/lpc17xx/lpc17_serial.c
@@ -550,7 +550,7 @@ static inline void up_enablebreaks(struct up_dev_s *priv, bool enable)
 /************************************************************************************
  * Name: lpc17_uartcclkdiv
  *
- * Descrption:
+ * Description:
  *   Select a CCLK divider to produce the UART PCLK.  The stratey is to select the
  *   smallest divisor that results in an solution within range of the 16-bit
  *   DLM and DLL divisor:
@@ -667,7 +667,7 @@ static inline uint32_t lpc17_uartcclkdiv(uint32_t baud)
 /************************************************************************************
  * Name: lpc17_uart0config, uart1config, uart2config, and uart3config
  *
- * Descrption:
+ * Description:
  *   Configure the UART.  UART0/1/2/3 peripherals are configured using the following
  *   registers:
  *
@@ -815,7 +815,7 @@ static inline void lpc17_uart3config(void)
 /************************************************************************************
  * Name: lpc17_uartdl
  *
- * Descrption:
+ * Description:
  *   Select a divider to produce the BAUD from the UART PCLK.
  *
  *     BAUD = PCLK / (16 * DL), or
diff --git a/arch/arm/src/lpc2378/lpc23xx_io.c b/arch/arm/src/lpc2378/lpc23xx_io.c
index 94e7f99c548..f871ce17f80 100644
--- a/arch/arm/src/lpc2378/lpc23xx_io.c
+++ b/arch/arm/src/lpc2378/lpc23xx_io.c
@@ -55,7 +55,8 @@
 /****************************************************************************
  * Name: IO_Init()
  *
- * Descriptions: Initialize the target board before running the main()
+ * Description:
+ *   Initialize the target board before running the main()
  *
  ****************************************************************************/
 
diff --git a/arch/arm/src/sam34/sam_udp.c b/arch/arm/src/sam34/sam_udp.c
index 908716ebb08..c2edada328c 100644
--- a/arch/arm/src/sam34/sam_udp.c
+++ b/arch/arm/src/sam34/sam_udp.c
@@ -2525,7 +2525,7 @@ static void sam_resume(struct sam_usbdev_s *priv)
 /****************************************************************************
  * Name: sam_ep_reset
  *
- * Description
+ * Description:
  *   Reset and disable one endpoints.
  *
  ****************************************************************************/
@@ -2565,7 +2565,7 @@ static void sam_ep_reset(struct sam_usbdev_s *priv, uint8_t epno)
 /****************************************************************************
  * Name: sam_epset_reset
  *
- * Description
+ * Description:
  *   Reset and disable a set of endpoints.
  *
  ****************************************************************************/
diff --git a/arch/arm/src/sama5/sam_boot.c b/arch/arm/src/sama5/sam_boot.c
index 0098100945f..609f1476080 100644
--- a/arch/arm/src/sama5/sam_boot.c
+++ b/arch/arm/src/sama5/sam_boot.c
@@ -84,7 +84,7 @@ extern uint32_t _vector_end;   /* End+1 of vector block */
 /****************************************************************************
  * Name: sam_setupmappings
  *
- * Description
+ * Description:
  *   Map all of the initial memory regions defined in g_section_mapping[]
  *
  ****************************************************************************/
@@ -106,7 +106,7 @@ static inline void sam_setupmappings(void)
 /****************************************************************************
  * Name: sam_remap
  *
- * Description
+ * Description:
  *   Map all of the final memory regions defined in g_operational_mapping[]
  *
  ****************************************************************************/
diff --git a/arch/arm/src/sama5/sam_udphs.c b/arch/arm/src/sama5/sam_udphs.c
index 090e10b4d84..1c04600e1a7 100644
--- a/arch/arm/src/sama5/sam_udphs.c
+++ b/arch/arm/src/sama5/sam_udphs.c
@@ -3048,7 +3048,7 @@ static void sam_resume(struct sam_usbdev_s *priv)
 /****************************************************************************
  * Name: sam_ep_reset
  *
- * Description
+ * Description:
  *   Reset and disable a set of endpoints.
  *
  ****************************************************************************/
@@ -3090,7 +3090,7 @@ static void sam_ep_reset(struct sam_usbdev_s *priv, uint8_t epno)
 /****************************************************************************
  * Name: sam_epset_reset
  *
- * Description
+ * Description:
  *   Reset and disable a set of endpoints.
  *
  ****************************************************************************/
diff --git a/arch/arm/src/samdl/sam_usb.c b/arch/arm/src/samdl/sam_usb.c
index 02521250738..2ed2fa2ff47 100644
--- a/arch/arm/src/samdl/sam_usb.c
+++ b/arch/arm/src/samdl/sam_usb.c
@@ -3491,7 +3491,7 @@ errout:
 /****************************************************************************
  * Name: sam_ep_reset
  *
- * Description
+ * Description:
  *   Reset and disable one endpoints.
  *
  ****************************************************************************/
@@ -3528,7 +3528,7 @@ static void sam_ep_reset(struct sam_usbdev_s *priv, uint8_t epno)
 /****************************************************************************
  * Name: sam_epset_reset
  *
- * Description
+ * Description:
  *   Reset and disable a set of endpoints.
  *
  ****************************************************************************/
diff --git a/arch/arm/src/samv7/sam_usbdevhs.c b/arch/arm/src/samv7/sam_usbdevhs.c
index d27dafd5cc8..5959cde64a0 100644
--- a/arch/arm/src/samv7/sam_usbdevhs.c
+++ b/arch/arm/src/samv7/sam_usbdevhs.c
@@ -3319,7 +3319,7 @@ static void sam_resume(struct sam_usbdev_s *priv)
 /****************************************************************************
  * Name: sam_ep_reset
  *
- * Description
+ * Description:
  *   Reset and disable a set of endpoints.
  *
  ****************************************************************************/
@@ -3377,7 +3377,7 @@ static void sam_ep_reset(struct sam_usbdev_s *priv, uint8_t epno)
 /****************************************************************************
  * Name: sam_epset_reset
  *
- * Description
+ * Description:
  *   Reset and disable a set of endpoints.
  *
  ****************************************************************************/
diff --git a/arch/arm/src/stm32/stm32_adc.c b/arch/arm/src/stm32/stm32_adc.c
index 89e826f6f0f..a1a3d5523c6 100644
--- a/arch/arm/src/stm32/stm32_adc.c
+++ b/arch/arm/src/stm32/stm32_adc.c
@@ -1366,7 +1366,8 @@ static void adc_rccreset(FAR struct stm32_dev_s *priv, bool reset)
 /****************************************************************************
  * Name: adc_power_down_idle
  *
- * Description    : Enables or disables power down during the idle phase.
+ * Description:
+ *   Enables or disables power down during the idle phase.
  *
  * Input Parameters:
  *
@@ -1407,7 +1408,8 @@ static void adc_power_down_idle(FAR struct stm32_dev_s *priv, bool pdi_high)
 /****************************************************************************
  * Name: adc_power_down_delay
  *
- * Description    : Enables or disables power down during the delay phase.
+ * Description:
+ *   Enables or disables power down during the delay phase.
  *
  * Input Parameters:
  *
@@ -1448,8 +1450,9 @@ static void adc_power_down_delay(FAR struct stm32_dev_s *priv, bool pdd_high)
 /****************************************************************************
  * Name: adc_dels_after_conversion
  *
- * Description    : Defines the length of the delay which is applied
- *                  after a conversion or a sequence of conversions.
+ * Description:
+ *   Defines the length of the delay which is applied after a conversion or
+ *   a sequence of conversions.
  *
  * Input Parameters:
  *
@@ -1474,7 +1477,8 @@ static void adc_dels_after_conversion(FAR struct stm32_dev_s *priv,
 /****************************************************************************
  * Name: adc_select_ch_bank
  *
- * Description    : Selects the bank of channels to be converted
+ * Description:
+ *   Selects the bank of channels to be converted
  *                  (! Must be modified only when no conversion is on going !)
  *
  * Input Parameters:
@@ -1507,9 +1511,9 @@ static void adc_select_ch_bank(FAR struct stm32_dev_s *priv,
 /****************************************************************************
  * Name: adc_enable
  *
- * Description    : Enables or disables the specified ADC peripheral.
- *                  Also, starts a conversion when the ADC is not
- *                  triggered by timers
+ * Description:
+ *   Enables or disables the specified ADC peripheral.  Also, starts a
+ *   conversion when the ADC is not triggered by timers
  *
  * Input Parameters:
  *
diff --git a/arch/arm/src/stm32/stm32_sdadc.c b/arch/arm/src/stm32/stm32_sdadc.c
index eaaf486e9d1..67e348c81d0 100644
--- a/arch/arm/src/stm32/stm32_sdadc.c
+++ b/arch/arm/src/stm32/stm32_sdadc.c
@@ -629,7 +629,8 @@ static void sdadc_rccreset(FAR struct stm32_dev_s *priv, bool reset)
 /****************************************************************************
  * Name: sdadc_power_down_idle
  *
- * Description    : Enables or disables power down during the idle phase.
+ * Description:
+ *   Enables or disables power down during the idle phase.
  *
  * Input Parameters:
  *   priv     - A reference to the SDADC block state
@@ -670,7 +671,8 @@ static void sdadc_power_down_idle(FAR struct stm32_dev_s *priv, bool pdi_high)
 /****************************************************************************
  * Name: sdadc_enable
  *
- * Description    : Enables or disables the specified SDADC peripheral.
+ * Description:
+ *   Enables or disables the specified SDADC peripheral.
  *                  Does not start conversion unless the SDADC is
  *                  triggered by timer
  *
diff --git a/arch/arm/src/stm32/stm32f33xxx_adc.c b/arch/arm/src/stm32/stm32f33xxx_adc.c
index 412c3453d79..b75641c27af 100644
--- a/arch/arm/src/stm32/stm32f33xxx_adc.c
+++ b/arch/arm/src/stm32/stm32f33xxx_adc.c
@@ -1350,9 +1350,9 @@ static void adc_rccreset(FAR struct stm32_dev_s *priv, bool reset)
 /****************************************************************************
  * Name: adc_enable
  *
- * Description    : Enables or disables the specified ADC peripheral.
- *                  Also, starts a conversion when the ADC is not
- *                  triggered by timers
+ * Description:
+ *   Enables or disables the specified ADC peripheral.  Also, starts a
+ *   conversion when the ADC is not triggered by timers
  *
  * Input Parameters:
  *
diff --git a/arch/arm/src/stm32f7/stm32_adc.c b/arch/arm/src/stm32f7/stm32_adc.c
index 587983c40ab..710209a2bf1 100644
--- a/arch/arm/src/stm32f7/stm32_adc.c
+++ b/arch/arm/src/stm32f7/stm32_adc.c
@@ -1082,9 +1082,9 @@ static void adc_rccreset(FAR struct stm32_dev_s *priv, bool reset)
 /****************************************************************************
  * Name: adc_enable
  *
- * Description    : Enables or disables the specified ADC peripheral.
- *                  Also, starts a conversion when the ADC is not
- *                  triggered by timers
+ * Description:
+ *   Enables or disables the specified ADC peripheral.  Also, starts a
+ *   conversion when the ADC is not triggered by timers
  *
  * Input Parameters:
  *
diff --git a/arch/arm/src/stm32l4/stm32l4_adc.c b/arch/arm/src/stm32l4/stm32l4_adc.c
index 2576ec182ed..ada9f4d8791 100644
--- a/arch/arm/src/stm32l4/stm32l4_adc.c
+++ b/arch/arm/src/stm32l4/stm32l4_adc.c
@@ -1145,7 +1145,8 @@ static void adc_rccreset(FAR struct stm32_dev_s *priv, bool reset)
 /****************************************************************************
  * Name: adc_enable
  *
- * Description    : Enables the specified ADC peripheral.
+ * Description:
+ *   Enables the specified ADC peripheral.
  *
  * Input Parameters:
  *   priv - A reference to the ADC block status
diff --git a/arch/arm/src/stm32l4/stm32l4_dfsdm.c b/arch/arm/src/stm32l4/stm32l4_dfsdm.c
index 4e54b77c519..a52ad71df03 100644
--- a/arch/arm/src/stm32l4/stm32l4_dfsdm.c
+++ b/arch/arm/src/stm32l4/stm32l4_dfsdm.c
@@ -1070,7 +1070,8 @@ static void dfsdm_rccreset(FAR struct stm32_dev_s *priv, bool reset)
 /****************************************************************************
  * Name: dfsdm_enable
  *
- * Description    : Enables the DFSDM peripheral.
+ * Description:
+ *   Enables the DFSDM peripheral.
  *
  * Input Parameters:
  *   priv - A reference to the DFSDM block status
diff --git a/arch/arm/src/str71x/str71x_head.S b/arch/arm/src/str71x/str71x_head.S
index c35715e02d2..934fd7fdfd1 100644
--- a/arch/arm/src/str71x/str71x_head.S
+++ b/arch/arm/src/str71x/str71x_head.S
@@ -346,7 +346,7 @@ eicloop:
 /*****************************************************************************
  * Name: periphinit
  *
- * Description"
+ * Description:
  *   Disable all perfipherals (except EIC)
  *
  *****************************************************************************/
diff --git a/arch/avr/src/avr/up_switchcontext.S b/arch/avr/src/avr/up_switchcontext.S
index c6ab3f8c080..c5613b9814e 100644
--- a/arch/avr/src/avr/up_switchcontext.S
+++ b/arch/avr/src/avr/up_switchcontext.S
@@ -106,7 +106,7 @@ up_switchcontext:
 /****************************************************************************
  * Name: up_fullcontextrestore
  *
- * Descripion:
+ * Description:
  *   Restore the full-running context of a thread.
  *
  * Input Parameters:
diff --git a/arch/avr/src/avr32/up_fullcontextrestore.S b/arch/avr/src/avr32/up_fullcontextrestore.S
index 8b091099834..45019c424bf 100644
--- a/arch/avr/src/avr32/up_fullcontextrestore.S
+++ b/arch/avr/src/avr32/up_fullcontextrestore.S
@@ -53,7 +53,7 @@
 /****************************************************************************
  * Name: up_fullcontextrestore
  *
- * Descripion:
+ * Description:
  *   Restore the full-running contex of a thread.
  *
  *   NOTE: Thus function must handle one very strange case.  That is when
diff --git a/arch/risc-v/src/nr5m100/nr5_allocateheap.c b/arch/risc-v/src/nr5m100/nr5_allocateheap.c
index 3467cee05cb..38fb84c162c 100644
--- a/arch/risc-v/src/nr5m100/nr5_allocateheap.c
+++ b/arch/risc-v/src/nr5m100/nr5_allocateheap.c
@@ -51,7 +51,7 @@
 /************************************************************************************
  * Name: up_addregion
  *
- * Descripton:
+ * Description:
  *   RAM may be added in non-contiguous chunks.  This routine adds all chunks
  *   that may be used for heap.
  *
diff --git a/drivers/audio/cs43l22.c b/drivers/audio/cs43l22.c
index be90d84c562..ad09df65ec8 100644
--- a/drivers/audio/cs43l22.c
+++ b/drivers/audio/cs43l22.c
@@ -209,7 +209,7 @@ static const struct audio_ops_s g_audioops =
 /****************************************************************************
  * Name: cs43l22_readreg
  *
- * Description
+ * Description:
  *    Read the specified 16-bit register from the CS43L22 device.
  *
  ****************************************************************************/
@@ -1206,8 +1206,8 @@ static int cs43l22_start(FAR struct audio_lowerhalf_s *dev)
 /****************************************************************************
  * Name: cs43l22_stop
  *
- * Description: Stop the configured operation (audio streaming, volume
- *              disabled, etc.).
+ * Description:
+ *   Stop the configured operation (audio streaming, volume disabled, etc.).
  *
  ****************************************************************************/
 
@@ -1244,7 +1244,8 @@ static int cs43l22_stop(FAR struct audio_lowerhalf_s *dev)
 /****************************************************************************
  * Name: cs43l22_pause
  *
- * Description: Pauses the playback.
+ * Description:
+ *   Pauses the playback.
  *
  ****************************************************************************/
 
@@ -1273,7 +1274,8 @@ static int cs43l22_pause(FAR struct audio_lowerhalf_s *dev)
 /****************************************************************************
  * Name: cs43l22_resume
  *
- * Description: Resumes the playback.
+ * Description:
+ *   Resumes the playback.
  *
  ****************************************************************************/
 
@@ -1306,7 +1308,8 @@ static int cs43l22_resume(FAR struct audio_lowerhalf_s *dev)
 /****************************************************************************
  * Name: cs43l22_enqueuebuffer
  *
- * Description: Enqueue an Audio Pipeline Buffer for playback/ processing.
+ * Description:
+ *   Enqueue an Audio Pipeline Buffer for playback/ processing.
  *
  ****************************************************************************/
 
@@ -1356,7 +1359,8 @@ static int cs43l22_enqueuebuffer(FAR struct audio_lowerhalf_s *dev,
 /****************************************************************************
  * Name: cs43l22_cancelbuffer
  *
- * Description: Called when an enqueued buffer is being cancelled.
+ * Description:
+ *   Called when an enqueued buffer is being cancelled.
  *
  ****************************************************************************/
 
@@ -1370,7 +1374,8 @@ static int cs43l22_cancelbuffer(FAR struct audio_lowerhalf_s *dev,
 /****************************************************************************
  * Name: cs43l22_ioctl
  *
- * Description: Perform a device ioctl
+ * Description:
+ *   Perform a device ioctl
  *
  ****************************************************************************/
 
@@ -1424,7 +1429,8 @@ static int cs43l22_ioctl(FAR struct audio_lowerhalf_s *dev, int cmd,
 /****************************************************************************
  * Name: cs43l22_reserve
  *
- * Description: Reserves a session (the only one we have).
+ * Description:
+ *   Reserves a session (the only one we have).
  *
  ****************************************************************************/
 
@@ -1469,7 +1475,8 @@ static int cs43l22_reserve(FAR struct audio_lowerhalf_s *dev)
 /****************************************************************************
  * Name: cs43l22_release
  *
- * Description: Releases the session (the only one we have).
+ * Description:
+ *   Releases the session (the only one we have).
  *
  ****************************************************************************/
 
diff --git a/drivers/audio/cs43l22.h b/drivers/audio/cs43l22.h
index f2ec078e109..ce83523527b 100644
--- a/drivers/audio/cs43l22.h
+++ b/drivers/audio/cs43l22.h
@@ -374,7 +374,7 @@ extern const uint8_t g_fllratio[CS43L22_NFLLRATIO];
 /****************************************************************************
  * Name: cs43l22_readreg
  *
- * Description
+ * Description:
  *    Read the specified 8-bit register from the CS43L22 device.
  *
  ****************************************************************************/
diff --git a/drivers/audio/wm8904.c b/drivers/audio/wm8904.c
index 50fb2a7045d..d917a8ee359 100644
--- a/drivers/audio/wm8904.c
+++ b/drivers/audio/wm8904.c
@@ -247,7 +247,7 @@ const uint8_t g_fllratio[WM8904_NFLLRATIO] =
 /****************************************************************************
  * Name: wm8904_readreg
  *
- * Description
+ * Description:
  *    Read the specified 16-bit register from the WM8904 device.
  *
  ****************************************************************************/
diff --git a/drivers/audio/wm8904.h b/drivers/audio/wm8904.h
index e51d247c5f3..0ba1e16c9ff 100644
--- a/drivers/audio/wm8904.h
+++ b/drivers/audio/wm8904.h
@@ -1118,7 +1118,7 @@ extern const uint8_t g_fllratio[WM8904_NFLLRATIO];
 /****************************************************************************
  * Name: wm8904_readreg
  *
- * Description
+ * Description:
  *    Read the specified 16-bit register from the WM8904 device.
  *
  ****************************************************************************/
diff --git a/drivers/input/ads7843e.c b/drivers/input/ads7843e.c
index e62d2c2de3b..56f1b6d88d7 100644
--- a/drivers/input/ads7843e.c
+++ b/drivers/input/ads7843e.c
@@ -225,7 +225,7 @@ static void ads7843e_unlock(FAR struct spi_dev_s *spi)
 /****************************************************************************
  * Name: ads7843e_sendcmd
  *
- * Description.
+ * Description:
  *   The command/data sequences is as follows:
  *
  *            DCLK
diff --git a/drivers/power/pm.h b/drivers/power/pm.h
index 472b42a9485..03e405910b2 100644
--- a/drivers/power/pm.h
+++ b/drivers/power/pm.h
@@ -76,7 +76,7 @@
 /****************************************************************************
  * Name: pm_lock
  *
- * Descripton:
+ * Description:
  *   Lock the power management registry.  NOTE: This function may return
  *   an error if a signal is received while what (errno == EINTR).
  *
@@ -87,7 +87,7 @@
 /****************************************************************************
  * Name: pm_unlock
  *
- * Descripton:
+ * Description:
  *   Unlock the power management registry.
  *
  ****************************************************************************/
diff --git a/drivers/sensors/qencoder.c b/drivers/sensors/qencoder.c
index be5879ac257..6649bf0ab39 100644
--- a/drivers/sensors/qencoder.c
+++ b/drivers/sensors/qencoder.c
@@ -236,7 +236,7 @@ errout:
 /************************************************************************************
  * Name: qe_read
  *
- * Description:O
+ * Description:
  *   A dummy read method.  This is provided only to satsify the VFS layer.
  *
  ************************************************************************************/
diff --git a/drivers/sensors/zerocross.c b/drivers/sensors/zerocross.c
index 3f01650f178..e2260ec0423 100644
--- a/drivers/sensors/zerocross.c
+++ b/drivers/sensors/zerocross.c
@@ -370,7 +370,7 @@ errout_with_exclsem:
 /****************************************************************************
  * Name: zc_read
  *
- * Description:O
+ * Description:
  *   A dummy read method.  This is provided only to satsify the VFS layer.
  *
  ****************************************************************************/
diff --git a/drivers/serial/tcdrain.c b/drivers/serial/tcdrain.c
index 1dcdf456bb7..5171aedf72d 100644
--- a/drivers/serial/tcdrain.c
+++ b/drivers/serial/tcdrain.c
@@ -55,7 +55,7 @@
 /****************************************************************************
  * Name: tcdrain
  *
- * Descripton:
+ * Description:
  *   Function for draining the output buffer of a terminal/serial device
  *
  * Input Parameters:
diff --git a/drivers/serial/uart_16550.c b/drivers/serial/uart_16550.c
index 3ba4a4f0569..79918be449c 100644
--- a/drivers/serial/uart_16550.c
+++ b/drivers/serial/uart_16550.c
@@ -518,7 +518,7 @@ static inline void u16550_enablebreaks(FAR struct u16550_s *priv,
 /****************************************************************************
  * Name: u16550_divisor
  *
- * Descrption:
+ * Description:
  *   Select a divider to produce the BAUD from the UART_CLK.
  *
  *     BAUD = UART_CLK / (16 * DL), or
diff --git a/drivers/spi/spi_bitbang.c b/drivers/spi/spi_bitbang.c
index 8c650282bce..06c0a1e81fd 100644
--- a/drivers/spi/spi_bitbang.c
+++ b/drivers/spi/spi_bitbang.c
@@ -528,7 +528,7 @@ static int spi_cmddata(FAR struct spi_dev_s *dev, uint32_t devid,
 /****************************************************************************
  * Name:  spi_create_bitbang
  *
- * Descripton:
+ * Description:
  *   Create an instance of the SPI bit-bang driver.
  *
  ****************************************************************************/
diff --git a/drivers/timers/oneshot.c b/drivers/timers/oneshot.c
index 404bb2a1d4f..8de9a3ef32b 100644
--- a/drivers/timers/oneshot.c
+++ b/drivers/timers/oneshot.c
@@ -179,7 +179,7 @@ static int oneshot_close(FAR struct file *filep)
 /************************************************************************************
  * Name: oneshot_read
  *
- * Description:O
+ * Description:
  *   A dummy read method.  This is provided only to satsify the VFS layer.
  *
  ************************************************************************************/
diff --git a/drivers/wireless/ieee802154/xbee/xbee_netdev.c b/drivers/wireless/ieee802154/xbee/xbee_netdev.c
index ea7db25986d..77e75e1187d 100644
--- a/drivers/wireless/ieee802154/xbee/xbee_netdev.c
+++ b/drivers/wireless/ieee802154/xbee/xbee_netdev.c
@@ -1165,7 +1165,7 @@ static int xbeenet_ioctl(FAR struct net_driver_s *dev, int cmd,
 /****************************************************************************
  * Name: xbeemac_get_mhrlen
  *
- * Description
+ * Description:
  *   Calculate the MAC header length given the frame meta-data.
  *
  * Input Parameters:
diff --git a/fs/fat/fs_fat32dirent.c b/fs/fat/fs_fat32dirent.c
index bc2f79801f4..bd1655aa79d 100644
--- a/fs/fat/fs_fat32dirent.c
+++ b/fs/fat/fs_fat32dirent.c
@@ -182,7 +182,7 @@ static uint8_t fat_lfnchecksum(const uint8_t *sfname)
 /****************************************************************************
  * Name: fat_parsesfname
  *
- * Desciption:  Convert a user filename into a properly formatted FAT
+ * Description:  Convert a user filename into a properly formatted FAT
  *   (short 8.3) filename as it would appear in a directory entry.  Here are
  *    the rules for the 8+3 short file name in the directory:
  *
@@ -458,7 +458,7 @@ errout:
 /****************************************************************************
  * Name: fat_parselfname
  *
- * Desciption:  Convert a user filename into a properly formatted FAT
+ * Description:  Convert a user filename into a properly formatted FAT
  *   long filename as it would appear in a directory entry.  Here are
  *   the rules for the long file name in the directory:
  *
@@ -549,7 +549,7 @@ errout:
 /****************************************************************************
  * Name: fat_createalias
  *
- * Desciption:  Given a valid long file name, create a short filename alias.
+ * Description:  Given a valid long file name, create a short filename alias.
  *   Here are the rules for creation of the alias:
  *
  *   1. All uppercase
@@ -761,7 +761,7 @@ static inline int fat_createalias(struct fat_dirinfo_s *dirinfo)
 /****************************************************************************
  * Name: fat_findalias
  *
- * Desciption:  Make sure that the short alias for the long file name is
+ * Description:  Make sure that the short alias for the long file name is
  *   unique, ie., that there is no other
  *
  * NOTE: This function does not restore the directory entry that was in the
@@ -800,7 +800,7 @@ static inline int fat_findalias(struct fat_mountpt_s *fs,
 /****************************************************************************
  * Name: fat_uniquealias
  *
- * Desciption:  Make sure that the short alias for the long file name is
+ * Description:  Make sure that the short alias for the long file name is
  *   unique, modifying the alias as necessary to assure uniqueness.
  *
  * NOTE: This function does not restore the directory entry that was in the
@@ -913,7 +913,7 @@ static inline int fat_uniquealias(struct fat_mountpt_s *fs,
 /****************************************************************************
  * Name: fat_path2dirname
  *
- * Desciption:  Convert a user filename into a properly formatted FAT
+ * Description:  Convert a user filename into a properly formatted FAT
  *   (short 8.3) filename as it would appear in a directory entry.
  *
  ****************************************************************************/
@@ -951,7 +951,7 @@ static int fat_path2dirname(const char **path, struct fat_dirinfo_s *dirinfo,
 /****************************************************************************
  * Name: fat_findsfnentry
  *
- * Desciption: Find a short file name directory entry.  Returns OK if the
+ * Description: Find a short file name directory entry.  Returns OK if the
  *  directory exists; -ENOENT if it does not.
  *
  ****************************************************************************/
@@ -1038,7 +1038,7 @@ static int fat_findsfnentry(struct fat_mountpt_s *fs,
 /****************************************************************************
  * Name: fat_cmplfnchunk
  *
- * Desciption:  There are 13 characters per LFN entry, broken up into three
+ * Description:  There are 13 characters per LFN entry, broken up into three
  *   chunks for characts 1-5, 6-11, and 12-13.  This function will perform
  *   the comparison of a single chunk.
  *
@@ -1102,7 +1102,7 @@ static bool fat_cmplfnchunk(uint8_t *chunk, const uint8_t *substr, int nchunk)
 /****************************************************************************
  * Name: fat_cmplfname
  *
- * Desciption: Given an LFN directory entry, compare a substring of the name
+ * Description: Given an LFN directory entry, compare a substring of the name
  *   to a portion in the directory entry.
  *
  ****************************************************************************/
@@ -1146,7 +1146,7 @@ static bool fat_cmplfname(const uint8_t *direntry, const uint8_t *substr)
 /****************************************************************************
  * Name: fat_findlfnentry
  *
- * Desciption: Find a sequence of long file name directory entries.
+ * Description: Find a sequence of long file name directory entries.
  *
  * NOTE: As a side effect, this function returns with the sector containing
  *   the short file name directory entry in the cache.
@@ -1368,7 +1368,7 @@ next_entry:
 /****************************************************************************
  * Name: fat_allocatesfnentry
  *
- * Desciption: Find a free directory entry for a short file name entry.
+ * Description: Find a free directory entry for a short file name entry.
  *
  ****************************************************************************/
 
@@ -1450,7 +1450,7 @@ static inline int fat_allocatesfnentry(struct fat_mountpt_s *fs,
 /****************************************************************************
  * Name: fat_allocatelfnentry
  *
- * Desciption: Find a sequence of free directory entries for a several long
+ * Description: Find a sequence of free directory entries for a several long
  *   and one short file name entry.
  *
  * On entry, dirinfo.dir refers to the first interesting entry the directory.
@@ -1592,7 +1592,7 @@ static inline int fat_allocatelfnentry(struct fat_mountpt_s *fs,
 /****************************************************************************
  * Name: fat_getsfname
  *
- * Desciption:  Get the 8.3 filename from a directory entry.  On entry, the
+ * Description:  Get the 8.3 filename from a directory entry.  On entry, the
  *  short file name entry is already in the cache.
  *
  ****************************************************************************/
@@ -1711,7 +1711,7 @@ static inline int fat_getsfname(uint8_t *direntry, char *buffer,
 /****************************************************************************
  * Name: fat_getlfnchunk
  *
- * Desciption:  There are 13 characters per LFN entry, broken up into three
+ * Description:  There are 13 characters per LFN entry, broken up into three
  *   chunks for characts 1-5, 6-11, and 12-13.  This function will get the
  *   file name characters from one chunk.
  *
@@ -1742,7 +1742,7 @@ static void fat_getlfnchunk(uint8_t *chunk, uint8_t *dest, int nchunk)
 /****************************************************************************
  * Name: fat_getlfname
  *
- * Desciption:  Get the long filename from a sequence of directory entries.
+ * Description:  Get the long filename from a sequence of directory entries.
  *   On entry, the "last" long file name entry is in the cache.  Returns with
  *   the short file name entry in the cache.
  *
@@ -1903,7 +1903,7 @@ static inline int fat_getlfname(struct fat_mountpt_s *fs, struct fs_dirent_s *di
 /****************************************************************************
  * Name: fat_putsfname
  *
- * Desciption: Write the short directory entry name.
+ * Description: Write the short directory entry name.
  *
  * Assumption:  The directory sector is in the cache.
  *
@@ -1928,7 +1928,7 @@ static int fat_putsfname(struct fat_mountpt_s *fs, struct fat_dirinfo_s *dirinfo
 /****************************************************************************
  * Name: fat_initlfname
  *
- * Desciption:  There are 13 characters per LFN entry, broken up into three
+ * Description:  There are 13 characters per LFN entry, broken up into three
  *   chunks for characts 1-5, 6-11, and 12-13.  This function will put the
  *   0xffff characters into one chunk.
  *
@@ -1954,7 +1954,7 @@ static void fat_initlfname(uint8_t *chunk, int nchunk)
 /****************************************************************************
  * Name: fat_putlfnchunk
  *
- * Desciption:  There are 13 characters per LFN entry, broken up into three
+ * Description:  There are 13 characters per LFN entry, broken up into three
  *   chunks for characts 1-5, 6-11, and 12-13.  This function will put the
  *   file name characters into one chunk.
  *
@@ -1986,7 +1986,7 @@ static void fat_putlfnchunk(uint8_t *chunk, const uint8_t *src, int nchunk)
 /****************************************************************************
  * Name: fat_putlfname
  *
- * Desciption:  Write the long filename into a sequence of directory entries.
+ * Description:  Write the long filename into a sequence of directory entries.
  *   On entry, the "last" long file name entry is in the cache.  Returns with
  *   the short file name entry in the cache.
  *
@@ -2192,7 +2192,7 @@ static int fat_putlfname(struct fat_mountpt_s *fs,
 /****************************************************************************
  * Name: fat_putsfdirentry
  *
- * Desciption: Write a short file name directory entry
+ * Description: Write a short file name directory entry
  *
  * Assumption:  The directory sector is in the cache.  The caller will write
  *   sector information.
@@ -2236,7 +2236,7 @@ static int fat_putsfdirentry(struct fat_mountpt_s *fs,
 /****************************************************************************
  * Name: fat_finddirentry
  *
- * Desciption: Given a path to something that may or may not be in the file
+ * Description: Given a path to something that may or may not be in the file
  *   system, return the description of the directory entry of the requested
  *   item.
  *
@@ -2407,7 +2407,7 @@ int fat_finddirentry(struct fat_mountpt_s *fs, struct fat_dirinfo_s *dirinfo,
 /****************************************************************************
  * Name: fat_allocatedirentry
  *
- * Desciption:
+ * Description:
  *   Find (or allocate) all needed directory entries to contain the file name
  *
  ****************************************************************************/
@@ -2544,7 +2544,7 @@ int fat_allocatedirentry(struct fat_mountpt_s *fs,
 /****************************************************************************
  * Name: fat_freedirentry
  *
- * Desciption:  Free the directory entry.
+ * Description:  Free the directory entry.
  *
  * NOTE: As a side effect, this function returns with the sector containing
  *   the deleted short file name directory entry in the cache.
@@ -2647,7 +2647,7 @@ int fat_freedirentry(struct fat_mountpt_s *fs, struct fat_dirseq_s *seq)
 /****************************************************************************
  * Name: fat_dirname2path
  *
- * Desciption:  Convert a filename in a raw directory entry into a user
+ * Description:  Convert a filename in a raw directory entry into a user
  *    filename.  This is essentially the inverse operation of that performed
  *    by fat_path2dirname.  See that function for more details.
  *
@@ -2690,7 +2690,7 @@ int fat_dirname2path(struct fat_mountpt_s *fs, struct fs_dirent_s *dir)
 /****************************************************************************
  * Name: fat_dirnamewrite
  *
- * Desciption: Write the (possibly long) directory entry name.  This function
+ * Description: Write the (possibly long) directory entry name.  This function
  *   is called only from fat_rename to write the new file name.
  *
  * Assumption:  The directory sector containing the short file name entry
@@ -2731,7 +2731,7 @@ int fat_dirnamewrite(struct fat_mountpt_s *fs, struct fat_dirinfo_s *dirinfo)
 /****************************************************************************
  * Name: fat_dirwrite
  *
- * Desciption: Write a directory entry, possibly with a long file name.
+ * Description: Write a directory entry, possibly with a long file name.
  *   Called from:
  *
  *   fat_mkdir() to write the new FAT directory entry.
@@ -2777,7 +2777,7 @@ int fat_dirwrite(struct fat_mountpt_s *fs, struct fat_dirinfo_s *dirinfo,
 /****************************************************************************
  * Name: fat_dircreate
  *
- * Desciption: Create a directory entry for a new file
+ * Description: Create a directory entry for a new file
  *
  ****************************************************************************/
 
@@ -2809,7 +2809,7 @@ int fat_dircreate(struct fat_mountpt_s *fs, struct fat_dirinfo_s *dirinfo)
 /****************************************************************************
  * Name: fat_remove
  *
- * Desciption: Remove a directory or file from the file system.  This
+ * Description: Remove a directory or file from the file system.  This
  *   implements both rmdir() and unlink().
  *
  ****************************************************************************/
diff --git a/fs/nfs/nfs_util.c b/fs/nfs/nfs_util.c
index 71709708920..c012ef39b51 100644
--- a/fs/nfs/nfs_util.c
+++ b/fs/nfs/nfs_util.c
@@ -157,7 +157,7 @@ void nfs_semgive(struct nfsmount *nmp)
 /****************************************************************************
  * Name: nfs_checkmount
  *
- * Desciption: Check if the mountpoint is still valid.
+ * Description: Check if the mountpoint is still valid.
  *
  *   The caller should hold the mountpoint semaphore
  *
@@ -190,7 +190,7 @@ int nfs_checkmount(struct nfsmount *nmp)
 /****************************************************************************
  * Name: nfs_request
  *
- * Desciption:
+ * Description:
  *   Perform the NFS request. On successful receipt, it verifies the NFS level of the
  *   returned values.
  *
@@ -255,7 +255,7 @@ tryagain:
 /****************************************************************************
  * Name: nfs_lookup
  *
- * Desciption:
+ * Description:
  *   Given a directory file handle, and the path to file in the directory,
  *   return the file handle of the path and attributes of both the file and
  *   the directory containing the file.
@@ -376,7 +376,7 @@ int nfs_lookup(struct nfsmount *nmp, FAR const char *filename,
 /****************************************************************************
  * Name: nfs_findnode
  *
- * Desciption:
+ * Description:
  *   Given a path to something that may or may not be in the file system,
  *   return the handle of the directory entry of the requested object.
  *
@@ -483,7 +483,7 @@ int nfs_findnode(struct nfsmount *nmp, FAR const char *relpath,
 /****************************************************************************
  * Name: nfs_finddir
  *
- * Desciption:
+ * Description:
  *   Given a path to something that may or may not be in the file system,
  *   return the handle of the entry of the directory containing the requested
  *   object.
@@ -574,7 +574,7 @@ int nfs_finddir(struct nfsmount *nmp, FAR const char *relpath,
 /****************************************************************************
  * Name: nfs_attrupdate
  *
- * Desciption:
+ * Description:
  *   Update file attributes on write or after the file is modified.
  *
  * Returned Value:
diff --git a/fs/romfs/fs_romfsutil.c b/fs/romfs/fs_romfsutil.c
index 145f349bc64..b796a3b0180 100644
--- a/fs/romfs/fs_romfsutil.c
+++ b/fs/romfs/fs_romfsutil.c
@@ -64,7 +64,7 @@
 /****************************************************************************
  * Name: romfs_swap32
  *
- * Desciption:
+ * Description:
  *   Convert the 32-bit big endian value to little endian
  *
  ****************************************************************************/
@@ -80,7 +80,7 @@ static inline uint32_t romfs_swap32(uint32_t value)
 /****************************************************************************
  * Name: romfs_devread32
  *
- * Desciption:
+ * Description:
  *   Read the big-endian 32-bit value from the mount device buffer
  *
  * Assumption:
@@ -105,7 +105,7 @@ static uint32_t romfs_devread32(struct romfs_mountpt_s *rm, int ndx)
 /****************************************************************************
  * Name: romfs_checkentry
  *
- * Desciption:
+ * Description:
  *   Check if the entry at offset is a directory or file path segment
  *
  ****************************************************************************/
@@ -181,7 +181,7 @@ static inline int romfs_checkentry(struct romfs_mountpt_s *rm,
 /****************************************************************************
  * Name: romfs_devcacheread
  *
- * Desciption:
+ * Description:
  *   Read the specified sector for specified offset into the sector cache.
  *   Return the index into the sector corresponding to the offset
  *
@@ -234,7 +234,7 @@ int16_t romfs_devcacheread(struct romfs_mountpt_s *rm, uint32_t offset)
 /****************************************************************************
  * Name: romfs_followhardlinks
  *
- * Desciption:
+ * Description:
  *   Given the offset to a file header, check if the file is a hardlink.
  *   If so, traverse the hard links until the terminal, non-linked header
  *   so found and return that offset.
@@ -280,7 +280,7 @@ static int romfs_followhardlinks(struct romfs_mountpt_s *rm, uint32_t offset,
 /****************************************************************************
  * Name: romfs_searchdir
  *
- * Desciption:
+ * Description:
  *   This is part of the romfs_finddirentry log.  Search the directory
  *   beginning at dirinfo->fr_firstoffset for entryname.
  *
@@ -382,7 +382,7 @@ void romfs_semgive(struct romfs_mountpt_s *rm)
 /****************************************************************************
  * Name: romfs_hwread
  *
- * Desciption: Read the specified sector into the sector buffer
+ * Description: Read the specified sector into the sector buffer
  *
  ****************************************************************************/
 
@@ -432,7 +432,7 @@ int romfs_hwread(struct romfs_mountpt_s *rm, uint8_t *buffer, uint32_t sector,
 /****************************************************************************
  * Name: romfs_filecacheread
  *
- * Desciption:
+ * Description:
  *   Read the specified sector into the sector cache
  *
  ****************************************************************************/
@@ -488,7 +488,7 @@ int romfs_filecacheread(struct romfs_mountpt_s *rm, struct romfs_file_s *rf,
 /****************************************************************************
  * Name: romfs_hwconfigure
  *
- * Desciption:
+ * Description:
  *   This function is called as part of the ROMFS mount operation   It
  *   configures the ROMFS filestem for use on this block driver.  This includes
  *   the accounting for the geometry of the device, setting up any XIP modes
@@ -561,7 +561,7 @@ int romfs_hwconfigure(struct romfs_mountpt_s *rm)
 /****************************************************************************
  * Name: romfs_fsconfigure
  *
- * Desciption:
+ * Description:
  *   This function is called as part of the ROMFS mount operation   It
  *   sets up the mount structure to include configuration information contained
  *   in the ROMFS header.  This is the place where we actually determine if
@@ -609,7 +609,7 @@ int romfs_fsconfigure(struct romfs_mountpt_s *rm)
 /****************************************************************************
  * Name: romfs_fileconfigure
  *
- * Desciption:
+ * Description:
  *   This function is called as part of the ROMFS file open operation   It
  *   sets up the file structure to handle buffer appropriately, depending
  *   upon XIP mode or not.
@@ -650,7 +650,7 @@ int romfs_fileconfigure(struct romfs_mountpt_s *rm, struct romfs_file_s *rf)
 /****************************************************************************
  * Name: romfs_checkmount
  *
- * Desciption: Check if the mountpoint is still valid.
+ * Description: Check if the mountpoint is still valid.
  *
  *   The caller should hold the mountpoint semaphore
  *
@@ -694,7 +694,7 @@ int romfs_checkmount(struct romfs_mountpt_s *rm)
 /****************************************************************************
  * Name: romfs_finddirentry
  *
- * Desciption:
+ * Description:
  *   Given a path to something that may or may not be in the file system,
  *   return the directory entry of the item.
  *
@@ -793,7 +793,7 @@ int romfs_finddirentry(struct romfs_mountpt_s *rm,
 /****************************************************************************
  * Name: romfs_parsedirentry
  *
- * Desciption:
+ * Description:
  *   Return the directory entry at this offset.  If rf is NULL, then the
  *   mount device resources are used.  Otherwise, file resources are used.
  *
@@ -847,7 +847,7 @@ int romfs_parsedirentry(struct romfs_mountpt_s *rm, uint32_t offset,
 /****************************************************************************
  * Name: romfs_parsefilename
  *
- * Desciption:
+ * Description:
  *   Return the filename from directory entry at this offset
  *
  ****************************************************************************/
@@ -914,7 +914,7 @@ int romfs_parsefilename(struct romfs_mountpt_s *rm, uint32_t offset,
 /****************************************************************************
  * Name: romfs_datastart
  *
- * Desciption:
+ * Description:
  *   Given the offset to a file header, return the offset to the start of
  *   the file data
  *
diff --git a/fs/smartfs/smartfs_utils.c b/fs/smartfs/smartfs_utils.c
index 0fcfecfd4ed..5071030c419 100644
--- a/fs/smartfs/smartfs_utils.c
+++ b/fs/smartfs/smartfs_utils.c
@@ -190,7 +190,7 @@ void smartfs_wrle32(uint8_t *dest, uint32_t val)
 /****************************************************************************
  * Name: smartfs_mount
  *
- * Desciption: This function is called only when the mountpoint is first
+ * Description: This function is called only when the mountpoint is first
  *   established.  It initializes the mountpoint structure and verifies
  *   that a valid SMART filesystem is provided by the block driver.
  *
@@ -334,7 +334,7 @@ errout:
 /****************************************************************************
  * Name: smartfs_unmount
  *
- * Desciption: This function is called only when the mountpoint is being
+ * Description: This function is called only when the mountpoint is being
  *   unbound.  If we are serving multiple directories, then we have to
  *   remove ourselves from the mount linked list, and potentially free
  *   the shared buffers.
diff --git a/graphics/nxbe/nxbe.h b/graphics/nxbe/nxbe.h
index 2f9ce9a3f80..dc9de89a9dc 100644
--- a/graphics/nxbe/nxbe.h
+++ b/graphics/nxbe/nxbe.h
@@ -208,7 +208,7 @@ void nxbe_closewindow(struct nxbe_window_s *wnd);
 /****************************************************************************
  * Name: nxbe_setposition
  *
- * Descripton:
+ * Description:
  *   This function checks for intersections and redraws the display after
  *   a change in the position of a window.
  *
@@ -220,7 +220,7 @@ void nxbe_setposition(FAR struct nxbe_window_s *wnd,
 /****************************************************************************
  * Name: nxbe_setsize
  *
- * Descripton:
+ * Description:
  *   This function checks for intersections and redraws the display after
  *   a change in the size of a window.
  *
diff --git a/graphics/nxbe/nxbe_clipper.c b/graphics/nxbe/nxbe_clipper.c
index e73ba6c8530..bf013f2e152 100644
--- a/graphics/nxbe/nxbe_clipper.c
+++ b/graphics/nxbe/nxbe_clipper.c
@@ -156,7 +156,7 @@ static inline bool nxbe_poprectangle(struct nxbe_clipstack_s *stack,
 /****************************************************************************
  * Name: nxbe_clipper
  *
- * Descripton:
+ * Description:
  *   Perform flexible clipping operations.  Callbacks are executed for
  *   each oscured and visible portions of the window.
  *
@@ -265,7 +265,7 @@ void nxbe_clipper(FAR struct nxbe_window_s *wnd,
 /****************************************************************************
  * Name: nxbe_clipnull
  *
- * Descripton:
+ * Description:
  *   The do-nothing clipping callback function
  *
  ****************************************************************************/
diff --git a/graphics/nxbe/nxbe_redraw.c b/graphics/nxbe/nxbe_redraw.c
index 397a0190603..bafd497a252 100644
--- a/graphics/nxbe/nxbe_redraw.c
+++ b/graphics/nxbe/nxbe_redraw.c
@@ -83,7 +83,7 @@ static void nxbe_clipredraw(FAR struct nxbe_clipops_s *cops,
 /****************************************************************************
  * Name: nxbe_redraw
  *
- * Descripton:
+ * Description:
  *   Re-draw the visible portions of the rectangular region for the
  *   specified window
  *
diff --git a/graphics/nxbe/nxbe_redrawbelow.c b/graphics/nxbe/nxbe_redrawbelow.c
index 97152670489..f51afc1f57e 100644
--- a/graphics/nxbe/nxbe_redrawbelow.c
+++ b/graphics/nxbe/nxbe_redrawbelow.c
@@ -51,7 +51,7 @@
 /****************************************************************************
  * Name: nxbe_redrawbelow
  *
- * Descripton:
+ * Description:
  *   Re-draw the visible portions of the rectangular region for all windows
  *   below (and including) the specified window.  This function is called
  *   whenever a window is closed, moved, lowered or re-sized in order to
diff --git a/graphics/nxbe/nxbe_setposition.c b/graphics/nxbe/nxbe_setposition.c
index a40a01ebe79..e5ee663ba4d 100644
--- a/graphics/nxbe/nxbe_setposition.c
+++ b/graphics/nxbe/nxbe_setposition.c
@@ -51,7 +51,7 @@
 /****************************************************************************
  * Name: nxbe_setposition
  *
- * Descripton:
+ * Description:
  *   This function checks for intersections and redraws the display after
  *   a change in the position of a window.
  *
diff --git a/graphics/nxbe/nxbe_setsize.c b/graphics/nxbe/nxbe_setsize.c
index 3b522d38a40..c7f10642584 100644
--- a/graphics/nxbe/nxbe_setsize.c
+++ b/graphics/nxbe/nxbe_setsize.c
@@ -51,7 +51,7 @@
 /****************************************************************************
  * Name: nxbe_setsize
  *
- * Descripton:
+ * Description:
  *   This function checks for intersections and redraws the display after
  *   a change in the size of a window.
  *
diff --git a/graphics/nxbe/nxbe_visible.c b/graphics/nxbe/nxbe_visible.c
index bf22ffa0beb..e39eef85122 100644
--- a/graphics/nxbe/nxbe_visible.c
+++ b/graphics/nxbe/nxbe_visible.c
@@ -81,7 +81,7 @@ static void nxbe_clipvisible(FAR struct nxbe_clipops_s *cops,
 /****************************************************************************
  * Name: nxbe_visible
  *
- * Descripton:
+ * Description:
  *   Return true if the point, pt, in window wnd is visible.  pt is in
  *   absolute screen coordinates
  *
diff --git a/graphics/nxglib/fb/nxglib_copyrectangle.c b/graphics/nxglib/fb/nxglib_copyrectangle.c
index 4b7270f1d06..a4e18cefda6 100644
--- a/graphics/nxglib/fb/nxglib_copyrectangle.c
+++ b/graphics/nxglib/fb/nxglib_copyrectangle.c
@@ -53,7 +53,7 @@
 /****************************************************************************
  * Name: nxgl_copyrectangle_*bpp
  *
- * Descripton:
+ * Description:
  *   Copy a rectangular bitmap image into the specific position in the
  *   framebuffer memory.
  *
diff --git a/graphics/nxglib/fb/nxglib_fillrectangle.c b/graphics/nxglib/fb/nxglib_fillrectangle.c
index 4fec88b60b4..16fde377a10 100644
--- a/graphics/nxglib/fb/nxglib_fillrectangle.c
+++ b/graphics/nxglib/fb/nxglib_fillrectangle.c
@@ -61,7 +61,7 @@
 /****************************************************************************
  * Name: nxgl_fillrectangle_*bpp
  *
- * Descripton:
+ * Description:
  *   Fill a rectangle region in the framebuffer memory with a fixed color
  *
  ****************************************************************************/
diff --git a/graphics/nxglib/fb/nxglib_filltrapezoid.c b/graphics/nxglib/fb/nxglib_filltrapezoid.c
index dcf29faad4f..a66dbd6e21b 100644
--- a/graphics/nxglib/fb/nxglib_filltrapezoid.c
+++ b/graphics/nxglib/fb/nxglib_filltrapezoid.c
@@ -63,7 +63,7 @@
 /****************************************************************************
  * Name: nxglib_filltrapezoid_*bpp
  *
- * Descripton:
+ * Description:
  *   Fill a trapezoidal region in the framebuffer memory with a fixed color.
  *   Clip the trapezoid to lie within a boundng box.  This is useful for
  *   drawing complex shapes that can be broken into a set of trapezoids.
diff --git a/graphics/nxglib/fb/nxglib_getrectangle.c b/graphics/nxglib/fb/nxglib_getrectangle.c
index 280affae1a2..419c36048b3 100644
--- a/graphics/nxglib/fb/nxglib_getrectangle.c
+++ b/graphics/nxglib/fb/nxglib_getrectangle.c
@@ -105,7 +105,7 @@ static inline void nxgl_lowresmemcpy(FAR uint8_t *dline, FAR const uint8_t *slin
 /****************************************************************************
  * Name: nxgl_getrectangle_*bpp
  *
- * Descripton:
+ * Description:
  *   Fetch a rectangular region from framebuffer memory.  The source is
  *   expressed as a rectangle.
  *
diff --git a/graphics/nxglib/fb/nxglib_moverectangle.c b/graphics/nxglib/fb/nxglib_moverectangle.c
index a24fc9f6f32..178f6070ccd 100644
--- a/graphics/nxglib/fb/nxglib_moverectangle.c
+++ b/graphics/nxglib/fb/nxglib_moverectangle.c
@@ -105,7 +105,7 @@ static inline void nxgl_lowresmemcpy(FAR uint8_t *dline, FAR const uint8_t *slin
 /****************************************************************************
  * Name: nxgl_moverectangle_*bpp
  *
- * Descripton:
+ * Description:
  *   Move a rectangular region from location to another in the
  *   framebuffer memory.  The source is expressed as a rectangle; the
  *   destination position is expressed as a point corresponding to the
diff --git a/graphics/nxglib/fb/nxglib_setpixel.c b/graphics/nxglib/fb/nxglib_setpixel.c
index 0cde90ff1ab..fd240469fb7 100644
--- a/graphics/nxglib/fb/nxglib_setpixel.c
+++ b/graphics/nxglib/fb/nxglib_setpixel.c
@@ -61,7 +61,7 @@
 /****************************************************************************
  * Name: nxgl_setpixel_*bpp
  *
- * Descripton:
+ * Description:
  *   Draw a single pixel in frambuffer memory at the given position and with
  *   the given color.   This is equivalent to nxgl_fillrectangle_*bpp() with
  *   a 1x1 rectangle but is more efficient.
diff --git a/graphics/nxglib/lcd/nxglib_copyrectangle.c b/graphics/nxglib/lcd/nxglib_copyrectangle.c
index a1fc20e8706..69b973d7f7e 100644
--- a/graphics/nxglib/lcd/nxglib_copyrectangle.c
+++ b/graphics/nxglib/lcd/nxglib_copyrectangle.c
@@ -55,7 +55,7 @@
 /****************************************************************************
  * Name: nxgl_copyrectangle_*bpp
  *
- * Descripton:
+ * Description:
  *   Copy a rectangular bitmap image into the specific position in the
  *   framebuffer memory.
  *
diff --git a/graphics/nxglib/lcd/nxglib_fillrectangle.c b/graphics/nxglib/lcd/nxglib_fillrectangle.c
index e3c263bff26..bcef2c15028 100644
--- a/graphics/nxglib/lcd/nxglib_fillrectangle.c
+++ b/graphics/nxglib/lcd/nxglib_fillrectangle.c
@@ -63,7 +63,7 @@
 /****************************************************************************
  * Name: nxgl_fillrectangle_*bpp
  *
- * Descripton:
+ * Description:
  *   Fill a rectangle region in the LCD memory with a fixed color
  *
  ****************************************************************************/
diff --git a/graphics/nxglib/lcd/nxglib_filltrapezoid.c b/graphics/nxglib/lcd/nxglib_filltrapezoid.c
index 5960384ab10..5da7418b2ba 100644
--- a/graphics/nxglib/lcd/nxglib_filltrapezoid.c
+++ b/graphics/nxglib/lcd/nxglib_filltrapezoid.c
@@ -63,7 +63,7 @@
 /****************************************************************************
  * Name: nxglib_filltrapezoid_*bpp
  *
- * Descripton:
+ * Description:
  *   Fill a trapezoidal region in the LCD memory with a fixed color.
  *   Clip the trapezoid to lie within a boundng box.  This is useful for
  *   drawing complex shapes that can be broken into a set of trapezoids.
diff --git a/graphics/nxglib/lcd/nxglib_getrectangle.c b/graphics/nxglib/lcd/nxglib_getrectangle.c
index adf6a90047c..129a7dc5ed1 100644
--- a/graphics/nxglib/lcd/nxglib_getrectangle.c
+++ b/graphics/nxglib/lcd/nxglib_getrectangle.c
@@ -53,7 +53,7 @@
 /****************************************************************************
  * Name: nxgl_moverectangle_*bpp
  *
- * Descripton:
+ * Description:
  *   Fetch a rectangular region from LCD GRAM memory.  The source is
  *   expressed as a rectangle.
  *
diff --git a/graphics/nxglib/lcd/nxglib_moverectangle.c b/graphics/nxglib/lcd/nxglib_moverectangle.c
index 85b388963ae..1956ff17d3b 100644
--- a/graphics/nxglib/lcd/nxglib_moverectangle.c
+++ b/graphics/nxglib/lcd/nxglib_moverectangle.c
@@ -53,7 +53,7 @@
 /****************************************************************************
  * Name: nxgl_moverectangle_*bpp
  *
- * Descripton:
+ * Description:
  *   Move a rectangular region from location to another in the
  *   LCD memory.  The source is expressed as a rectangle; the
  *   destination position is expressed as a point corresponding to the
diff --git a/graphics/nxglib/lcd/nxglib_setpixel.c b/graphics/nxglib/lcd/nxglib_setpixel.c
index cb57d048ab4..402d4f64dae 100644
--- a/graphics/nxglib/lcd/nxglib_setpixel.c
+++ b/graphics/nxglib/lcd/nxglib_setpixel.c
@@ -62,7 +62,7 @@
 /****************************************************************************
  * Name: nxgl_setpixel_*bpp
  *
- * Descripton:
+ * Description:
  *   Draw a single pixel in LCD memory at the given position and with the
  *   given color.  This is equivalent to nxgl_fillrectangle_*bpp() with a 1x1
  *   rectangle but is more efficient.
diff --git a/graphics/nxmu/nxmu_redrawreq.c b/graphics/nxmu/nxmu_redrawreq.c
index 325fb1e72b2..2214174b3e4 100644
--- a/graphics/nxmu/nxmu_redrawreq.c
+++ b/graphics/nxmu/nxmu_redrawreq.c
@@ -73,7 +73,7 @@
 /****************************************************************************
  * Name: nxfe_redrawreq
  *
- * Descripton:
+ * Description:
  *   Request the client that has this window to redraw the rectangular region.
  *
  ****************************************************************************/
diff --git a/graphics/nxmu/nxmu_reportposition.c b/graphics/nxmu/nxmu_reportposition.c
index 757873ac1ee..e6166c49a38 100644
--- a/graphics/nxmu/nxmu_reportposition.c
+++ b/graphics/nxmu/nxmu_reportposition.c
@@ -73,7 +73,7 @@
 /****************************************************************************
  * Name: nxfe_reportposition
  *
- * Descripton:
+ * Description:
  *   Report the new size/position of the window.
  *
  ****************************************************************************/
diff --git a/include/nuttx/nx/nxglib.h b/include/nuttx/nx/nxglib.h
index 89530cac252..30850049a7f 100644
--- a/include/nuttx/nx/nxglib.h
+++ b/include/nuttx/nx/nxglib.h
@@ -222,7 +222,7 @@ void nxgl_yuv2rgb(uint8_t y, uint8_t u, uint8_t v,
 /****************************************************************************
  * Name: nxgl_setpixel_*bpp
  *
- * Descripton:
+ * Description:
  *   Draw a single pixel in graphics memory at the given position and
  *   with the given color.  This is equivalent to nxgl_fillrectangle_*bpp()
  *   with a 1x1 rectangle but is more efficient.
@@ -247,7 +247,7 @@ void nxgl_setpixel_32bpp(FAR NX_PLANEINFOTYPE *pinfo,
 /****************************************************************************
  * Name: nxgl_fillrectangle_*bpp
  *
- * Descripton:
+ * Description:
  *   Fill a rectangle region in the graphics memory with a fixed color
  *
  ****************************************************************************/
@@ -277,7 +277,7 @@ void nxgl_fillrectangle_32bpp(FAR NX_PLANEINFOTYPE *pinfo,
 /****************************************************************************
  * Name: nxgl_getrectangle_*bpp
  *
- * Descripton:
+ * Description:
  *   Fetch a rectangular region from graphics memory.  The source is
  *   expressed as a rectangle.
  *
@@ -308,7 +308,7 @@ void nxgl_getrectangle_32bpp(FAR NX_PLANEINFOTYPE *pinfo,
 /****************************************************************************
  * Name: nxglib_filltrapezoid_*bpp
  *
- * Descripton:
+ * Description:
  *   Fill a trapezoidal region in the graphics memory with a fixed color.
  *   Clip the trapezoid to lie within a bounding box.  This is useful for
  *   drawing complex shapes that can be broken into a set of trapezoids.
@@ -347,7 +347,7 @@ void nxgl_filltrapezoid_32bpp(FAR NX_PLANEINFOTYPE *pinfo,
 /****************************************************************************
  * Name: nxgl_moverectangle_*bpp
  *
- * Descripton:
+ * Description:
  *   Move a rectangular region from location to another in the
  *   framebuffer/LCD memory.  The source is expressed as a rectangle; the
  *   destination position is expressed as a point corresponding to the
@@ -380,7 +380,7 @@ void nxgl_moverectangle_32bpp(FAR NX_PLANEINFOTYPE *pinfo,
 /****************************************************************************
  * Name: nxgl_copyrectangle_*bpp
  *
- * Descripton:
+ * Description:
  *   Copy a rectangular bitmap image into the specific position in the
  *   graphics memory.
  *
diff --git a/include/nuttx/spi/spi_bitbang.h b/include/nuttx/spi/spi_bitbang.h
index 9f3a010671a..228fbd6a500 100644
--- a/include/nuttx/spi/spi_bitbang.h
+++ b/include/nuttx/spi/spi_bitbang.h
@@ -129,7 +129,7 @@ extern "C"
 /****************************************************************************
  * Name:  spi_create_bitbang
  *
- * Descripton:
+ * Description:
  *   Create an instance of the SPI bit-bang driver.
  *
  * Input Parameters:
diff --git a/libc/netdb/lib_gethostbynamer.c b/libc/netdb/lib_gethostbynamer.c
index d1a2e5fb2da..b66e0994e98 100644
--- a/libc/netdb/lib_gethostbynamer.c
+++ b/libc/netdb/lib_gethostbynamer.c
@@ -420,7 +420,7 @@ static int lib_find_answer(FAR const char *name, FAR struct hostent *host,
 /****************************************************************************
  * Name: lib_dns_query
  *
- * Descriptions:
+ * Description:
  *   Combines the operations of dns_bind(), dns_query(), and dns_free() to
  *   obtain the IP address ('ipaddr') associated with the 'hostname' in one
  *   operation.
diff --git a/libc/queue/dq_addlast.c b/libc/queue/dq_addlast.c
index a18ec9083bd..51a423b813a 100644
--- a/libc/queue/dq_addlast.c
+++ b/libc/queue/dq_addlast.c
@@ -46,7 +46,7 @@
 /****************************************************************************
  * Name: dq_addlast
  *
- * Description
+ * Description:
  *   dq_addlast adds 'node' to the end of 'queue'
  *
  ****************************************************************************/
diff --git a/libc/queue/dq_rem.c b/libc/queue/dq_rem.c
index 2c6176ae1dd..d53b6922340 100644
--- a/libc/queue/dq_rem.c
+++ b/libc/queue/dq_rem.c
@@ -46,7 +46,7 @@
 /****************************************************************************
  * Name: dq_rem
  *
- * Descripton:
+ * Description:
  *   dq_rem removes 'node' from 'queue'
  *
  ****************************************************************************/
diff --git a/libc/stdio/lib_fclose.c b/libc/stdio/lib_fclose.c
index 374e9f4e535..138cdc14f70 100644
--- a/libc/stdio/lib_fclose.c
+++ b/libc/stdio/lib_fclose.c
@@ -54,7 +54,7 @@
 /****************************************************************************
  * Name: fclose
  *
- * Description
+ * Description:
  *   The fclose() function will flush the stream pointed to by stream
  *   (writing any buffered output data using lib_fflush()) and close the
  *   underlying file descriptor.
diff --git a/libc/termios/lib_cfgetspeed.c b/libc/termios/lib_cfgetspeed.c
index 1471b23d367..bac31bdd8a8 100644
--- a/libc/termios/lib_cfgetspeed.c
+++ b/libc/termios/lib_cfgetspeed.c
@@ -47,7 +47,7 @@
 /****************************************************************************
  * Name: cfgetspeed
  *
- * Descripton:
+ * Description:
  *   The cfgetspeed() function is a non-POSIX function will extract the baud
  *   from the termios structure to which the termiosp argument points.
  *
diff --git a/libc/termios/lib_cfsetspeed.c b/libc/termios/lib_cfsetspeed.c
index 0c3e1215860..6f742905abc 100644
--- a/libc/termios/lib_cfsetspeed.c
+++ b/libc/termios/lib_cfsetspeed.c
@@ -44,7 +44,7 @@
 /****************************************************************************
  * Name: cfsetspeed
  *
- * Descripton:
+ * Description:
  *   The cfsetspeed() function is a non-POSIX function that sets the baud
  *   stored in the structure pointed to by termiosp to speed.
  *
diff --git a/libc/termios/lib_tcflow.c b/libc/termios/lib_tcflow.c
index 1ac7a7a7b43..13f3ec3c88e 100644
--- a/libc/termios/lib_tcflow.c
+++ b/libc/termios/lib_tcflow.c
@@ -53,7 +53,7 @@
 /****************************************************************************
  * Name: tcflow
  *
- * Descripton:
+ * Description:
  *   The tcflow() function will suspend or restart transmission or reception
  *   of data on the object referred to by 'fd', depending on the value of
  *   'action'.
diff --git a/libc/termios/lib_tcflush.c b/libc/termios/lib_tcflush.c
index 239e3610cf9..1189686d131 100644
--- a/libc/termios/lib_tcflush.c
+++ b/libc/termios/lib_tcflush.c
@@ -53,7 +53,7 @@
 /****************************************************************************
  * Name: tcflush
  *
- * Descripton:
+ * Description:
  *   Function for flushing a terminal/serial device
  *
  * Input Parameters:
diff --git a/libc/termios/lib_tcgetattr.c b/libc/termios/lib_tcgetattr.c
index c7e0c2339e1..c9354eef70a 100644
--- a/libc/termios/lib_tcgetattr.c
+++ b/libc/termios/lib_tcgetattr.c
@@ -53,7 +53,7 @@
 /****************************************************************************
  * Name: tcgetattr
  *
- * Descripton:
+ * Description:
  *   The tcgetattr() function gets the parameters associated with the
  *   terminal referred to by 'fd' and stores them in the termios structure
  *   referenced by 'termiosp'.
diff --git a/libc/termios/lib_tcsetattr.c b/libc/termios/lib_tcsetattr.c
index 20903e20299..d77d9646102 100644
--- a/libc/termios/lib_tcsetattr.c
+++ b/libc/termios/lib_tcsetattr.c
@@ -53,7 +53,7 @@
 /****************************************************************************
  * Name: tcsetattr
  *
- * Descripton:
+ * Description:
  *   The tcsetattr() function sets the parameters associated with the
  *   terminal referred to by the open file descriptor 'fd' from the termios
  *   structure referenced by 'termiop' as follows:
diff --git a/libnx/nxmu/nx_redrawreq.c b/libnx/nxmu/nx_redrawreq.c
index 520305bf80d..d2745a1cc8c 100644
--- a/libnx/nxmu/nx_redrawreq.c
+++ b/libnx/nxmu/nx_redrawreq.c
@@ -54,7 +54,7 @@
 /****************************************************************************
  * Name: nx_redrawreq
  *
- * Descripton:
+ * Description:
  *   This will cause a NX re-draw callback to the client that owns the
  *   window.  This is not normally called from user code, but may be
  *   used within middle-ware layers when redrawing is needed.