diff --git a/libraries/AP_HAL/UARTDriver.cpp b/libraries/AP_HAL/UARTDriver.cpp
index 547cd55ab75..55412be3185 100644
--- a/libraries/AP_HAL/UARTDriver.cpp
+++ b/libraries/AP_HAL/UARTDriver.cpp
@@ -179,6 +179,11 @@ bool AP_HAL::UARTDriver::flow_control_enabled(enum flow_control flow_control_set
     return false;
 }
 
+uint8_t AP_HAL::UARTDriver::get_parity(void)
+{
+    return AP_HAL::UARTDriver::parity;
+}
+
 #if HAL_UART_STATS_ENABLED
 // Take cumulative bytes and return the change since last call
 uint32_t AP_HAL::UARTDriver::StatsTracker::ByteTracker::update(uint32_t bytes)
diff --git a/libraries/AP_HAL/UARTDriver.h b/libraries/AP_HAL/UARTDriver.h
index db395550e00..317ddd1fba5 100644
--- a/libraries/AP_HAL/UARTDriver.h
+++ b/libraries/AP_HAL/UARTDriver.h
@@ -78,6 +78,9 @@ public:
 
     // read buffer from a locked port. If port is locked and key is not correct then -1 is returned
     ssize_t read_locked(uint8_t *buf, size_t count, uint32_t key) WARN_IF_UNUSED;
+
+    // get current parity for passthrough use
+    uint8_t get_parity(void);
     
     // control optional features
     virtual bool set_options(uint16_t options) { _last_options = options; return options==0; }
@@ -189,6 +192,9 @@ public:
     // return true requested baud on USB port
     virtual uint32_t get_usb_baud(void) const { return 0; }
 
+    // return requested parity on USB port
+    virtual uint8_t get_usb_parity(void) const { return parity; }
+
     // disable TX/RX pins for unusued uart
     virtual void disable_rxtx(void) const {}
 
@@ -213,6 +219,8 @@ protected:
     uint32_t lock_write_key;
     uint32_t lock_read_key;
 
+    uint8_t parity;
+
     /*
       backend begin method
      */
diff --git a/libraries/AP_HAL_ChibiOS/UARTDriver.cpp b/libraries/AP_HAL_ChibiOS/UARTDriver.cpp
index 70ee7f2875c..d0fedce5479 100644
--- a/libraries/AP_HAL_ChibiOS/UARTDriver.cpp
+++ b/libraries/AP_HAL_ChibiOS/UARTDriver.cpp
@@ -672,6 +672,19 @@ uint32_t UARTDriver::get_usb_baud() const
     return 0;
 }
 
+/*
+    get the requested usb parity.  Valid if get_usb_baud() returned non-zero.
+*/
+uint8_t UARTDriver::get_usb_parity() const
+{
+#if HAL_USE_SERIAL_USB
+    if (sdef.is_usb) {
+        return ::get_usb_parity(sdef.endpoint_id);
+    }
+#endif
+    return 0;
+}
+
 uint32_t UARTDriver::_available()
 {
     if (!_rx_initialised || _uart_owner_thd != chThdGetSelfX()) {
@@ -1429,6 +1442,7 @@ void UARTDriver::configure_parity(uint8_t v)
         // not possible
         return;
     }
+    UARTDriver::parity = v;
 #if HAL_USE_SERIAL == TRUE
     // stop and start to take effect
     sdStop((SerialDriver*)sdef.serial);
diff --git a/libraries/AP_HAL_ChibiOS/UARTDriver.h b/libraries/AP_HAL_ChibiOS/UARTDriver.h
index 900086bbc03..e50230d427a 100644
--- a/libraries/AP_HAL_ChibiOS/UARTDriver.h
+++ b/libraries/AP_HAL_ChibiOS/UARTDriver.h
@@ -38,6 +38,7 @@ public:
     bool is_initialized() override;
     bool tx_pending() override;
     uint32_t get_usb_baud() const override;
+    uint8_t get_usb_parity() const override;
 
     // disable TX/RX pins for unusued uart
     void disable_rxtx(void) const override;
diff --git a/libraries/AP_HAL_ChibiOS/hwdef/common/usbcfg.c b/libraries/AP_HAL_ChibiOS/hwdef/common/usbcfg.c
index eed51ebae3e..e7341798209 100644
--- a/libraries/AP_HAL_ChibiOS/hwdef/common/usbcfg.c
+++ b/libraries/AP_HAL_ChibiOS/hwdef/common/usbcfg.c
@@ -251,6 +251,18 @@ uint32_t get_usb_baud(uint16_t endpoint_id)
     }
     return 0;
 }
+
+/*
+    get the requested usb parity.  Valid if get_usb_baud() returned non-zero
+*/
+uint8_t get_usb_parity(uint16_t endpoint_id)
+{
+      if (endpoint_id == 0) {
+          return linecoding.bParityType;
+      }
+
+      return 0;
+}
 #endif
 /**
  * @brief   IN EP1 state.
diff --git a/libraries/AP_HAL_ChibiOS/hwdef/common/usbcfg.h b/libraries/AP_HAL_ChibiOS/hwdef/common/usbcfg.h
index 2add6e6c7f9..79fa3446cb9 100644
--- a/libraries/AP_HAL_ChibiOS/hwdef/common/usbcfg.h
+++ b/libraries/AP_HAL_ChibiOS/hwdef/common/usbcfg.h
@@ -46,6 +46,7 @@ extern SerialUSBDriver SDU2;
 extern const SerialUSBConfig serusbcfg2;
 #endif //HAL_HAVE_DUAL_USB_CDC
 uint32_t get_usb_baud(uint16_t endpoint_id);
+uint8_t get_usb_parity(uint16_t endpoint_id);
 #endif
 #define USB_DESC_MAX_STRLEN 100
 void setup_usb_strings(void);
diff --git a/libraries/AP_HAL_ChibiOS/hwdef/common/usbcfg_dualcdc.c b/libraries/AP_HAL_ChibiOS/hwdef/common/usbcfg_dualcdc.c
index cb1a127287c..e3dab2bc264 100644
--- a/libraries/AP_HAL_ChibiOS/hwdef/common/usbcfg_dualcdc.c
+++ b/libraries/AP_HAL_ChibiOS/hwdef/common/usbcfg_dualcdc.c
@@ -315,6 +315,19 @@ uint32_t get_usb_baud(uint16_t endpoint_id)
   }
   return 0;
 }
+
+/*
+    get the requested usb parity.  Valid if get_usb_baud() returned non-zero
+*/
+uint8_t get_usb_parity(uint16_t endpoint_id)
+{
+  for (uint8_t i = 0; i < ARRAY_SIZE(linecoding); i++) {
+      if (endpoint_id == ep_index[i]) {
+          return linecoding[i].bParityType;
+      }
+  }
+  return 0;
+}
 #endif
 /**
  * @brief   IN EP1 state.
diff --git a/libraries/AP_HAL_Linux/UARTDriver.cpp b/libraries/AP_HAL_Linux/UARTDriver.cpp
index 64747297136..169358f1659 100644
--- a/libraries/AP_HAL_Linux/UARTDriver.cpp
+++ b/libraries/AP_HAL_Linux/UARTDriver.cpp
@@ -417,6 +417,7 @@ void UARTDriver::_timer_tick(void)
 }
 
 void UARTDriver::configure_parity(uint8_t v) {
+    UARTDriver::parity = v;
     _device->set_parity(v);
 }
 
diff --git a/libraries/AP_HAL_SITL/UARTDriver.h b/libraries/AP_HAL_SITL/UARTDriver.h
index 11a272d7524..4fc517d2c59 100644
--- a/libraries/AP_HAL_SITL/UARTDriver.h
+++ b/libraries/AP_HAL_SITL/UARTDriver.h
@@ -161,6 +161,7 @@ private:
     // statistics
     uint32_t _tx_stats_bytes;
     uint32_t _rx_stats_bytes;
+
 };
 
 #endif
diff --git a/libraries/AP_HAL_SITL/UART_utils.cpp b/libraries/AP_HAL_SITL/UART_utils.cpp
index f0a7d06c708..a3dfcccc286 100644
--- a/libraries/AP_HAL_SITL/UART_utils.cpp
+++ b/libraries/AP_HAL_SITL/UART_utils.cpp
@@ -73,6 +73,7 @@ void HALSITL::UARTDriver::configure_parity(uint8_t v)
     if (_fd < 0) {
         return;
     }
+    UARTDriver::parity = v;
 #ifdef USE_TERMIOS
     struct termios t;