diff --git a/drivers/analog/ad5410.c b/drivers/analog/ad5410.c
index 217a2c8a447..15ceedf4a74 100644
--- a/drivers/analog/ad5410.c
+++ b/drivers/analog/ad5410.c
@@ -256,7 +256,7 @@ static int dac_send(FAR struct dac_dev_s *dev, FAR struct dac_msg_s *msg)
 
 static int dac_ioctl(FAR struct dac_dev_s *dev, int cmd, unsigned long arg)
 {
-  err("Fix me:Not Implemented\n");
+  err("ERROR: Fix me; Not Implemented\n");
   return 0;
 }
 
diff --git a/drivers/analog/ads1242.c b/drivers/analog/ads1242.c
index b3c72852f13..d15f58e3b43 100644
--- a/drivers/analog/ads1242.c
+++ b/drivers/analog/ads1242.c
@@ -403,15 +403,15 @@ static void ads1242_print_regs(FAR struct ads1242_dev_s *dev, char const *msg)
  uint8_t mux_reg_value   = 0;
  uint8_t acr_reg_value   = 0;
 
- err("%s\n", msg);
+ info("%s\n", msg);
 
  ads1242_read_reg(dev, ADS1242_REG_SETUP, &setup_reg_value);
  ads1242_read_reg(dev, ADS1242_REG_MUX, &mux_reg_value);
  ads1242_read_reg(dev, ADS1242_REG_ACR, &acr_reg_value);
 
- err("SETUP  %02X\n", setup_reg_value);
- err("MUX    %02X\n", mux_reg_value);
- err("ACR    %02X\n", acr_reg_value);
+ info("SETUP  %02X\n", setup_reg_value);
+ info("MUX    %02X\n", mux_reg_value);
+ info("ACR    %02X\n", acr_reg_value);
 }
 #endif /* CONFIG_DEBUG_FEATURES && CONFIG_DEBUG_INFO */
 
diff --git a/drivers/analog/ads1255.c b/drivers/analog/ads1255.c
index a70ce9795b4..ea70d361741 100644
--- a/drivers/analog/ads1255.c
+++ b/drivers/analog/ads1255.c
@@ -396,7 +396,7 @@ static void adc_rxint(FAR struct adc_dev_s *dev, bool enable)
 
 static int adc_ioctl(FAR struct adc_dev_s *dev, int cmd, unsigned long arg)
 {
-  err("Fix me:Not Implemented\n");
+  err("ERROR: Fix me; Not Implemented\n");
   return 0;
 }
 
diff --git a/drivers/audio/audio_null.c b/drivers/audio/audio_null.c
index 6545d7df392..d6c522101ae 100644
--- a/drivers/audio/audio_null.c
+++ b/drivers/audio/audio_null.c
@@ -375,7 +375,7 @@ static int null_configure(FAR struct audio_lowerhalf_s *dev,
 #endif  /* CONFIG_AUDIO_EXCLUDE_TONE */
 
         default:
-          auderr("    Unrecognized feature unit\n");
+          auderr("    ERROR: Unrecognized feature unit\n");
           break;
         }
       break;
diff --git a/drivers/audio/vs1053.c b/drivers/audio/vs1053.c
index e52b0c388a1..fd00b37444c 100644
--- a/drivers/audio/vs1053.c
+++ b/drivers/audio/vs1053.c
@@ -967,7 +967,7 @@ static void vs1053_feeddata(FAR struct vs1053_struct_s *dev)
   /* Local stack copy of our active buffer */
 
   apb = dev->apb;
-  //auderr("Entry apb=%p, Bytes left=%d\n", apb, apb->nbytes - apb->curbyte);
+  //audinfo("Entry apb=%p, Bytes left=%d\n", apb, apb->nbytes - apb->curbyte);
 
   /* Setup pointer to the next sample in the buffer */
 
@@ -1039,12 +1039,16 @@ static void vs1053_feeddata(FAR struct vs1053_struct_s *dev)
                 {
                   (void)SPI_SETFREQUENCY(dev->spi, dev->spi_freq);
                   dev->hw_lower->disable(dev->hw_lower);   /* Disable the DREQ interrupt */
-                  auderr("HDAT1: 0x%0X   HDAT0: 0x%0X\n",
-                      vs1053_readreg(dev, VS1053_SCI_HDAT1),
-                      vs1053_readreg(dev, VS1053_SCI_HDAT0));
+
+                  audinfo("HDAT1: 0x%0X   HDAT0: 0x%0X\n",
+                          vs1053_readreg(dev, VS1053_SCI_HDAT1),
+                          vs1053_readreg(dev, VS1053_SCI_HDAT0));
+
                   vs1053_writereg(dev, VS1053_SCI_WRAMADDR, VS1053_END_FILL_BYTE);
                   dev->endfillchar = vs1053_readreg(dev, VS1053_SCI_WRAM) >> 8;
-                  auderr("EndFillChar: 0x%0X\n", dev->endfillchar);
+
+                  audinfo("EndFillChar: 0x%0X\n", dev->endfillchar);
+
                   reg = vs1053_readreg(dev, VS1053_SCI_MODE);
                   vs1053_writereg(dev, VS1053_SCI_MODE, reg | VS1053_SM_RESET);
 
@@ -1171,7 +1175,7 @@ static void vs1053_feeddata(FAR struct vs1053_struct_s *dev)
                   dev->lower.upper(dev->lower.priv,
                       AUDIO_CALLBACK_IOERR, NULL, ret);
 #endif
-                  auderr("I/O error!\n");
+                  auderr("ERROR: I/O error!\n");
 
                   goto err_out;
                 }
@@ -1181,7 +1185,7 @@ static void vs1053_feeddata(FAR struct vs1053_struct_s *dev)
               apb = (struct ap_buffer_s *) dq_remfirst(&dev->apbq);
               dev->apb = apb;
 
-              //auderr("Next Buffer = %p, bytes = %d\n", apb, apb ? apb->nbytes : 0);
+              //audinfo("Next Buffer = %p, bytes = %d\n", apb, apb ? apb->nbytes : 0);
               if (apb == NULL)
                 {
                   sem_post(&dev->apbq_sem);
@@ -1274,7 +1278,7 @@ static void *vs1053_workerthread(pthread_addr_t pvarg)
 #endif
   uint8_t                 timeout;
 
-  auderr("Entry\n");
+  audinfo("Entry\n");
 
 #ifndef CONFIG_AUDIO_EXCLUDE_STOP
   dev->cancelmode   = false;
@@ -1404,8 +1408,7 @@ static void *vs1053_workerthread(pthread_addr_t pvarg)
   dev->lower.upper(dev->lower.priv, AUDIO_CALLBACK_COMPLETE, NULL, OK);
 #endif
 
-  auderr("Exit\n");
-
+  audinfo("Exit\n");
   return NULL;
 }
 
@@ -1430,12 +1433,12 @@ static int vs1053_start(FAR struct audio_lowerhalf_s *lower)
   int                 ret;
   void                *value;
 
-  auderr("Entry\n");
+  audinfo("Entry\n");
 
   vs1053_spi_lock(dev->spi, dev->spi_freq);     /* Lock the device */
-  auderr("Entry HDAT1=0x%0X  HDAT0=0x%0X\n",
-      vs1053_readreg(dev, VS1053_SCI_HDAT1),
-      vs1053_readreg(dev, VS1053_SCI_HDAT0));
+  audinfo("Entry HDAT1=0x%0X  HDAT0=0x%0X\n",
+          vs1053_readreg(dev, VS1053_SCI_HDAT1),
+          vs1053_readreg(dev, VS1053_SCI_HDAT0));
   vs1053_spi_unlock(dev->spi);
 
   /* Do a soft reset, just in case */
@@ -1446,9 +1449,9 @@ static int vs1053_start(FAR struct audio_lowerhalf_s *lower)
 
   vs1053_spi_lock(dev->spi, dev->spi_freq);     /* Lock the device */
   vs1053_setfrequency(dev, CONFIG_VS1053_MP3_DECODE_FREQ);
-  auderr("Reset HDAT1=0x%0X  HDAT0=0x%0X\n",
-      vs1053_readreg(dev, VS1053_SCI_HDAT1),
-      vs1053_readreg(dev, VS1053_SCI_HDAT0));
+  audinfo("Reset HDAT1=0x%0X  HDAT0=0x%0X\n",
+          vs1053_readreg(dev, VS1053_SCI_HDAT1),
+          vs1053_readreg(dev, VS1053_SCI_HDAT0));
   vs1053_spi_unlock(dev->spi);
 
   /* Create a message queue for the worker thread */
@@ -1463,7 +1466,7 @@ static int vs1053_start(FAR struct audio_lowerhalf_s *lower)
     {
       /* Error creating message queue! */
 
-      auderr("Couldn't allocate message queue\n");
+      auderr("ERROR: Couldn't allocate message queue\n");
       return -ENOMEM;
     }
 
@@ -1477,7 +1480,7 @@ static int vs1053_start(FAR struct audio_lowerhalf_s *lower)
     }
   else
     {
-      auderr("Error getting APB Queue sem\n");
+      auderr("ERROR: Error getting APB Queue sem\n");
       return ret;
     }
 
@@ -1485,7 +1488,7 @@ static int vs1053_start(FAR struct audio_lowerhalf_s *lower)
 
   if (dev->threadid != 0)
     {
-      auderr("Joining old thread\n");
+      audinfo("Joining old thread\n");
       pthread_join(dev->threadid, &value);
     }
 
@@ -1496,17 +1499,17 @@ static int vs1053_start(FAR struct audio_lowerhalf_s *lower)
   (void)pthread_attr_setschedparam(&tattr, &sparam);
   (void)pthread_attr_setstacksize(&tattr, CONFIG_VS1053_WORKER_STACKSIZE);
 
-  auderr("Starting workerthread\n");
+  audinfo("Starting workerthread\n");
   ret = pthread_create(&dev->threadid, &tattr, vs1053_workerthread,
       (pthread_addr_t) dev);
   if (ret != OK)
     {
-      auderr("Can't create worker thread, errno=%d\n", errno);
+      auderr("ERROR: Can't create worker thread, errno=%d\n", errno);
     }
   else
     {
       pthread_setname_np(dev->threadid, "vs1053");
-      auderr("Created worker thread\n");
+      audinfo("Created worker thread\n");
     }
 
   return ret;
@@ -1896,13 +1899,13 @@ struct audio_lowerhalf_s *vs1053_initialize(FAR struct spi_dev_s *spi,
       id = (status & VS1053_SS_VER) >> VS1053_VER_SHIFT;
       if (id != VS1053_VER_VS1053)
         {
-          auderr("Unexpected VER bits: 0x%0X\n", id);
+          auderr("ERROR: Unexpected VER bits: 0x%0X\n", id);
           kmm_free(dev);
           return NULL;
         }
       else
         {
-          auderr("VS1053 Detected!\n");
+          audinfo("VS1053 Detected!\n");
         }
 
       /* Attach our ISR to this device */
diff --git a/drivers/audio/wm8904.c b/drivers/audio/wm8904.c
index 33779d5eb7a..07f87741cef 100644
--- a/drivers/audio/wm8904.c
+++ b/drivers/audio/wm8904.c
@@ -283,7 +283,7 @@ uint16_t wm8904_readreg(FAR struct wm8904_dev_s *priv, uint8_t regaddr)
 #ifdef CONFIG_I2C_RESET
           /* Perhaps the I2C bus is locked up?  Try to shake the bus free */
 
-          auderr("WARNING: I2C_TRANSFER failed: %d ... Resetting\n", ret);
+          audwarn("WARNING: I2C_TRANSFER failed: %d ... Resetting\n", ret);
 
           ret = I2C_RESET(priv->i2c);
           if (ret < 0)
@@ -359,7 +359,7 @@ static void wm8904_writereg(FAR struct wm8904_dev_s *priv, uint8_t regaddr,
 #ifdef CONFIG_I2C_RESET
           /* Perhaps the I2C bus is locked up?  Try to shake the bus free */
 
-          auderr("WARNING: i2c_write failed: %d ... Resetting\n", ret);
+          audwarn("WARNING: i2c_write failed: %d ... Resetting\n", ret);
 
           ret = I2C_RESET(priv->i2c);
           if (ret < 0)
@@ -1207,7 +1207,7 @@ static int wm8904_configure(FAR struct audio_lowerhalf_s *dev,
 #endif  /* CONFIG_AUDIO_EXCLUDE_TONE */
 
         default:
-          auderr("    Unrecognized feature unit\n");
+          auderr("    ERROR: Unrecognized feature unit\n");
           ret = -ENOTTY;
           break;
         }
diff --git a/drivers/bch/bchdev_register.c b/drivers/bch/bchdev_register.c
index c92d744e84b..2efb0e53381 100644
--- a/drivers/bch/bchdev_register.c
+++ b/drivers/bch/bchdev_register.c
@@ -86,7 +86,7 @@ int bchdev_register(FAR const char *blkdev, FAR const char *chardev,
   ret = bchlib_setup(blkdev, readonly, &handle);
   if (ret < 0)
     {
-      ferr("bchlib_setup failed: %d\n", -ret);
+      ferr("ERROR: bchlib_setup failed: %d\n", -ret);
       return ret;
     }
 
@@ -95,7 +95,7 @@ int bchdev_register(FAR const char *blkdev, FAR const char *chardev,
   ret = register_driver(chardev, &bch_fops, 0666, handle);
   if (ret < 0)
     {
-      ferr("register_driver failed: %d\n", -ret);
+      ferr("ERROR: register_driver failed: %d\n", -ret);
       bchlib_teardown(handle);
       handle = NULL;
     }
diff --git a/drivers/bch/bchdev_unregister.c b/drivers/bch/bchdev_unregister.c
index 3867a629746..6c2e4dd5068 100644
--- a/drivers/bch/bchdev_unregister.c
+++ b/drivers/bch/bchdev_unregister.c
@@ -103,7 +103,7 @@ int bchdev_unregister(FAR const char *chardev)
   fd = open(chardev, O_RDONLY);
   if (fd < 0)
     {
-      err("Failed to open %s: %d\n", chardev, errno);
+      err("ERROR: Failed to open %s: %d\n", chardev, errno);
       return -errno;
     }
 
@@ -116,7 +116,7 @@ int bchdev_unregister(FAR const char *chardev)
 
   if (ret < 0)
     {
-      err("ioctl failed: %d\n", errno);
+      err("ERROR: ioctl failed: %d\n", errno);
       return -errno;
     }
 
diff --git a/drivers/bch/bchlib_read.c b/drivers/bch/bchlib_read.c
index 0978af9963a..45804d3560b 100644
--- a/drivers/bch/bchlib_read.c
+++ b/drivers/bch/bchlib_read.c
@@ -160,7 +160,7 @@ ssize_t bchlib_read(FAR void *handle, FAR char *buffer, size_t offset, size_t le
                                        sector, nsectors);
       if (ret < 0)
         {
-          ferr("Read failed: %d\n");
+          ferr("ERROR: Read failed: %d\n");
           return ret;
         }
 
diff --git a/drivers/bch/bchlib_setup.c b/drivers/bch/bchlib_setup.c
index e2924c1743d..803c5058ce8 100644
--- a/drivers/bch/bchlib_setup.c
+++ b/drivers/bch/bchlib_setup.c
@@ -96,7 +96,7 @@ int bchlib_setup(const char *blkdev, bool readonly, FAR void **handle)
   bch = (FAR struct bchlib_s *)kmm_zalloc(sizeof(struct bchlib_s));
   if (!bch)
     {
-      ferr("Failed to allocate BCH structure\n");
+      ferr("ERROR: Failed to allocate BCH structure\n");
       return -ENOMEM;
     }
 
@@ -105,7 +105,7 @@ int bchlib_setup(const char *blkdev, bool readonly, FAR void **handle)
   ret = open_blockdriver(blkdev, readonly ? MS_RDONLY : 0, &bch->inode);
   if (ret < 0)
     {
-      ferr("Failed to open driver %s: %d\n", blkdev, -ret);
+      ferr("ERROR: Failed to open driver %s: %d\n", blkdev, -ret);
       goto errout_with_bch;
     }
 
@@ -114,20 +114,20 @@ int bchlib_setup(const char *blkdev, bool readonly, FAR void **handle)
   ret = bch->inode->u.i_bops->geometry(bch->inode, &geo);
   if (ret < 0)
     {
-      ferr("geometry failed: %d\n", -ret);
+      ferr("ERROR: geometry failed: %d\n", -ret);
       goto errout_with_bch;
     }
 
   if (!geo.geo_available)
     {
-      ferr("geometry failed: %d\n", -ret);
+      ferr("ERROR: geometry failed: %d\n", -ret);
       ret = -ENODEV;
       goto errout_with_bch;
     }
 
   if (!readonly && (!bch->inode->u.i_bops->write || !geo.geo_writeenabled))
     {
-      ferr("write access not supported\n");
+      ferr("ERROR: write access not supported\n");
       ret = -EACCES;
       goto errout_with_bch;
     }
@@ -145,7 +145,7 @@ int bchlib_setup(const char *blkdev, bool readonly, FAR void **handle)
   bch->buffer = (FAR uint8_t *)kmm_malloc(bch->sectsize);
   if (!bch->buffer)
     {
-      ferr("Failed to allocate sector buffer\n");
+      ferr("ERROR: Failed to allocate sector buffer\n");
       ret = -ENOMEM;
       goto errout_with_bch;
     }
diff --git a/drivers/bch/bchlib_write.c b/drivers/bch/bchlib_write.c
index 06d3f39dc72..712839ef06e 100644
--- a/drivers/bch/bchlib_write.c
+++ b/drivers/bch/bchlib_write.c
@@ -162,7 +162,7 @@ ssize_t bchlib_write(FAR void *handle, FAR const char *buffer, size_t offset, si
                                         sector, nsectors);
       if (ret < 0)
         {
-          ferr("Write failed: %d\n", ret);
+          ferr("ERROR: Write failed: %d\n", ret);
           return ret;
         }
 
@@ -204,7 +204,7 @@ ssize_t bchlib_write(FAR void *handle, FAR const char *buffer, size_t offset, si
   ret = bchlib_flushsector(bch);
   if (ret < 0)
     {
-      ferr("Flush failed: %d\n", ret);
+      ferr("ERROR: Flush failed: %d\n", ret);
       return ret;
     }
 
diff --git a/drivers/input/ads7843e.c b/drivers/input/ads7843e.c
index df0e24e584c..0ce1f897cb5 100644
--- a/drivers/input/ads7843e.c
+++ b/drivers/input/ads7843e.c
@@ -427,7 +427,7 @@ static int ads7843e_waitsample(FAR struct ads7843e_dev_s *priv,
            * the failure now.
            */
 
-          ierr("sem_wait: %d\n", errno);
+          ierr("ERROR: sem_wait: %d\n", errno);
           DEBUGASSERT(errno == EINTR);
           ret = -EINTR;
           goto errout;
@@ -498,7 +498,7 @@ static int ads7843e_schedule(FAR struct ads7843e_dev_s *priv)
   ret = work_queue(HPWORK, &priv->work, ads7843e_worker, priv, 0);
   if (ret != 0)
     {
-      illerr("Failed to queue work: %d\n", ret);
+      illerr("ERROR: Failed to queue work: %d\n", ret);
     }
 
   return OK;
@@ -870,7 +870,7 @@ static ssize_t ads7843e_read(FAR struct file *filep, FAR char *buffer, size_t le
        * handle smaller reads... but why?
        */
 
-      ierr("Unsupported read size: %d\n", len);
+      ierr("ERROR: Unsupported read size: %d\n", len);
       return -ENOSYS;
     }
 
@@ -881,7 +881,7 @@ static ssize_t ads7843e_read(FAR struct file *filep, FAR char *buffer, size_t le
     {
       /* This should only happen if the wait was cancelled by an signal */
 
-      ierr("sem_wait: %d\n", errno);
+      ierr("ERROR: sem_wait: %d\n", errno);
       DEBUGASSERT(errno == EINTR);
       return -EINTR;
     }
@@ -910,7 +910,7 @@ static ssize_t ads7843e_read(FAR struct file *filep, FAR char *buffer, size_t le
         {
           /* We might have been awakened by a signal */
 
-          ierr("ads7843e_waitsample: %d\n", ret);
+          ierr("ERROR: ads7843e_waitsample: %d\n", ret);
           goto errout;
         }
     }
@@ -1170,7 +1170,7 @@ int ads7843e_register(FAR struct spi_dev_s *spi,
   priv = (FAR struct ads7843e_dev_s *)kmm_malloc(sizeof(struct ads7843e_dev_s));
   if (!priv)
     {
-      ierr("kmm_malloc(%d) failed\n", sizeof(struct ads7843e_dev_s));
+      ierr("ERROR: kmm_malloc(%d) failed\n", sizeof(struct ads7843e_dev_s));
       return -ENOMEM;
     }
 #endif
@@ -1197,12 +1197,12 @@ int ads7843e_register(FAR struct spi_dev_s *spi,
   ret = config->attach(config, ads7843e_interrupt);
   if (ret < 0)
     {
-      ierr("Failed to attach interrupt\n");
+      ierr("ERROR: Failed to attach interrupt\n");
       goto errout_with_priv;
     }
 
-  ierr("Mode: %d Bits: 8 Frequency: %d\n",
-       CONFIG_ADS7843E_SPIMODE, CONFIG_ADS7843E_FREQUENCY);
+  iinfo("Mode: %d Bits: 8 Frequency: %d\n",
+        CONFIG_ADS7843E_SPIMODE, CONFIG_ADS7843E_FREQUENCY);
 
   /* Lock the SPI bus so that we have exclusive access */
 
@@ -1224,7 +1224,7 @@ int ads7843e_register(FAR struct spi_dev_s *spi,
   ret = register_driver(devname, &ads7843e_fops, 0666, priv);
   if (ret < 0)
     {
-      ierr("register_driver() failed: %d\n", ret);
+      ierr("ERROR: register_driver() failed: %d\n", ret);
       goto errout_with_priv;
     }
 
@@ -1246,7 +1246,7 @@ int ads7843e_register(FAR struct spi_dev_s *spi,
   ret = work_queue(HPWORK, &priv->work, ads7843e_worker, priv, 0);
   if (ret != 0)
     {
-      ierr("Failed to queue work: %d\n", ret);
+      ierr("ERROR: Failed to queue work: %d\n", ret);
       goto errout_with_priv;
     }
 
diff --git a/drivers/input/max11802.c b/drivers/input/max11802.c
index 2d579cefed8..ca460861421 100644
--- a/drivers/input/max11802.c
+++ b/drivers/input/max11802.c
@@ -392,7 +392,7 @@ static int max11802_waitsample(FAR struct max11802_dev_s *priv,
            * the failure now.
            */
 
-          ierr("sem_wait: %d\n", errno);
+          ierr("ERROR: sem_wait: %d\n", errno);
           DEBUGASSERT(errno == EINTR);
           ret = -EINTR;
           goto errout;
@@ -463,7 +463,7 @@ static int max11802_schedule(FAR struct max11802_dev_s *priv)
   ret = work_queue(HPWORK, &priv->work, max11802_worker, priv, 0);
   if (ret != 0)
     {
-      illerr("Failed to queue work: %d\n", ret);
+      illerr("ERROR: Failed to queue work: %d\n", ret);
     }
 
   return OK;
@@ -877,7 +877,7 @@ static ssize_t max11802_read(FAR struct file *filep, FAR char *buffer,
        * handle smaller reads... but why?
        */
 
-      ierr("Unsupported read size: %d\n", len);
+      ierr("ERROR: Unsupported read size: %d\n", len);
       return -ENOSYS;
     }
 
@@ -888,7 +888,7 @@ static ssize_t max11802_read(FAR struct file *filep, FAR char *buffer,
     {
       /* This should only happen if the wait was cancelled by an signal */
 
-      ierr("sem_wait: %d\n", errno);
+      ierr("ERROR: sem_wait: %d\n", errno);
       DEBUGASSERT(errno == EINTR);
       return -EINTR;
     }
@@ -917,7 +917,7 @@ static ssize_t max11802_read(FAR struct file *filep, FAR char *buffer,
         {
           /* We might have been awakened by a signal */
 
-          ierr("max11802_waitsample: %d\n", ret);
+          ierr("ERROR: max11802_waitsample: %d\n", ret);
           goto errout;
         }
     }
@@ -1173,7 +1173,7 @@ int max11802_register(FAR struct spi_dev_s *spi,
   priv = (FAR struct max11802_dev_s *)kmm_malloc(sizeof(struct max11802_dev_s));
   if (!priv)
     {
-      ierr("kmm_malloc(%d) failed\n", sizeof(struct max11802_dev_s));
+      ierr("ERROR: kmm_malloc(%d) failed\n", sizeof(struct max11802_dev_s));
       return -ENOMEM;
     }
 #endif
@@ -1200,12 +1200,12 @@ int max11802_register(FAR struct spi_dev_s *spi,
   ret = config->attach(config, max11802_interrupt);
   if (ret < 0)
     {
-      ierr("Failed to attach interrupt\n");
+      ierr("ERROR: Failed to attach interrupt\n");
       goto errout_with_priv;
     }
 
-  ierr("Mode: %d Bits: 8 Frequency: %d\n",
-       CONFIG_MAX11802_SPIMODE, CONFIG_MAX11802_FREQUENCY);
+  iinfo("Mode: %d Bits: 8 Frequency: %d\n",
+        CONFIG_MAX11802_SPIMODE, CONFIG_MAX11802_FREQUENCY);
 
   /* Lock the SPI bus so that we have exclusive access */
 
@@ -1246,7 +1246,7 @@ int max11802_register(FAR struct spi_dev_s *spi,
 
   if (ret != MAX11802_MODE)
   {
-    ierr("max11802 mode readback failed: %02x\n", ret);
+    ierr("ERROR: max11802 mode readback failed: %02x\n", ret);
     goto errout_with_priv;
   }
 
@@ -1258,7 +1258,7 @@ int max11802_register(FAR struct spi_dev_s *spi,
   ret = register_driver(devname, &max11802_fops, 0666, priv);
   if (ret < 0)
     {
-      ierr("register_driver() failed: %d\n", ret);
+      ierr("ERROR: register_driver() failed: %d\n", ret);
       goto errout_with_priv;
     }
 
@@ -1281,7 +1281,7 @@ int max11802_register(FAR struct spi_dev_s *spi,
   ret = work_queue(HPWORK, &priv->work, max11802_worker, priv, 0);
   if (ret != 0)
     {
-      ierr("Failed to queue work: %d\n", ret);
+      ierr("ERROR: Failed to queue work: %d\n", ret);
       goto errout_with_priv;
     }
 
diff --git a/drivers/input/mxt.c b/drivers/input/mxt.c
index 7801b72b5bc..48c3dd33aae 100644
--- a/drivers/input/mxt.c
+++ b/drivers/input/mxt.c
@@ -343,7 +343,7 @@ static int mxt_getreg(FAR struct mxt_dev_s *priv, uint16_t regaddr,
 #ifdef CONFIG_I2C_RESET
           /* Perhaps the I2C bus is locked up?  Try to shake the bus free */
 
-          ierr("WARNING: I2C_TRANSFER failed: %d ... Resetting\n", ret);
+          iwarn("WARNING: I2C_TRANSFER failed: %d ... Resetting\n", ret);
 
           ret = I2C_RESET(priv->i2c);
           if (ret < 0)
@@ -417,7 +417,7 @@ static int mxt_putreg(FAR struct mxt_dev_s *priv, uint16_t regaddr,
 #ifdef CONFIG_I2C_RESET
           /* Perhaps the I2C bus is locked up?  Try to shake the bus free */
 
-          ierr("WARNING: I2C_TRANSFER failed: %d ... Resetting\n", ret);
+          iwarn("WARNING: I2C_TRANSFER failed: %d ... Resetting\n", ret);
 
           ret = I2C_RESET(priv->i2c);
           if (ret < 0)
@@ -1097,7 +1097,7 @@ static int mxt_interrupt(FAR const struct mxt_lower_s *lower, FAR void *arg)
   ret = work_queue(HPWORK, &priv->work, mxt_worker, priv, 0);
   if (ret != 0)
     {
-      illerr("Failed to queue work: %d\n", ret);
+      illerr("ERROR: Failed to queue work: %d\n", ret);
     }
 
   /* Clear any pending interrupts and return success */
@@ -1575,7 +1575,7 @@ static int mxt_poll(FAR struct file *filep, FAR struct pollfd *fds,
 
       if ((fds->events & POLLIN) == 0)
         {
-          ierr("Missing POLLIN: revents: %08x\n", fds->revents);
+          ierr("ERROR: Missing POLLIN: revents: %08x\n", fds->revents);
           ret = -EDEADLK;
           goto errout;
         }
@@ -1600,7 +1600,7 @@ static int mxt_poll(FAR struct file *filep, FAR struct pollfd *fds,
 
       if (i >= CONFIG_MXT_NPOLLWAITERS)
         {
-          ierr("No availabled slot found: %d\n", i);
+          ierr("ERROR: No availabled slot found: %d\n", i);
           fds->priv    = NULL;
           ret          = -EBUSY;
           goto errout;
@@ -1897,7 +1897,7 @@ int mxt_register(FAR struct i2c_master_s *i2c,
   ret = MXT_ATTACH(lower, mxt_interrupt, priv);
   if (ret < 0)
     {
-      ierr("Failed to attach interrupt\n");
+      ierr("ERROR: Failed to attach interrupt\n");
       goto errout_with_priv;
     }
 
@@ -1918,7 +1918,7 @@ int mxt_register(FAR struct i2c_master_s *i2c,
   ret = register_driver(devname, &mxt_fops, 0666, priv);
   if (ret < 0)
     {
-      ierr("register_driver() failed: %d\n", ret);
+      ierr("ERROR: register_driver() failed: %d\n", ret);
       goto errout_with_hwinit;
     }
 
diff --git a/drivers/input/stmpe811_adc.c b/drivers/input/stmpe811_adc.c
index cdd2aaac2c5..563ebb26517 100644
--- a/drivers/input/stmpe811_adc.c
+++ b/drivers/input/stmpe811_adc.c
@@ -101,7 +101,7 @@ int stmpe811_adcinitialize(STMPE811_HANDLE handle)
   if (ret < 0)
     {
       int errval = errno;
-      ierr("sem_wait failed: %d\n", errval);
+      ierr("ERROR: sem_wait failed: %d\n", errval);
       return -errval;
     }
 
@@ -161,7 +161,7 @@ int stmpe811_adcconfig(STMPE811_HANDLE handle, int pin)
   if (ret < 0)
     {
       int errval = errno;
-      ierr("sem_wait failed: %d\n", errval);
+      ierr("ERROR: sem_wait failed: %d\n", errval);
       return -errval;
     }
 
@@ -169,7 +169,7 @@ int stmpe811_adcconfig(STMPE811_HANDLE handle, int pin)
 
   if ((priv->inuse & pinmask) != 0)
     {
-      ierr("PIN%d is already in-use\n", pin);
+      ierr("ERROR: PIN%d is already in-use\n", pin);
       sem_post(&priv->exclsem);
       return -EBUSY;
     }
@@ -221,7 +221,7 @@ uint16_t stmpe811_adcread(STMPE811_HANDLE handle, int pin)
   if (ret < 0)
     {
       int errval = errno;
-      ierr("sem_wait failed: %d\n", errval);
+      ierr("ERROR: sem_wait failed: %d\n", errval);
       return -errval;
     }
 
diff --git a/drivers/input/stmpe811_base.c b/drivers/input/stmpe811_base.c
index d4b6d50f23d..8aea42e09de 100644
--- a/drivers/input/stmpe811_base.c
+++ b/drivers/input/stmpe811_base.c
@@ -199,7 +199,7 @@ static int stmpe811_interrupt(int irq, FAR void *context)
       ret = work_queue(HPWORK, &priv->work, stmpe811_worker, priv, 0);
       if (ret != 0)
         {
-          illerr("Failed to queue work: %d\n", ret);
+          illerr("ERROR: Failed to queue work: %d\n", ret);
         }
     }
 
@@ -422,7 +422,7 @@ uint8_t stmpe811_getreg8(FAR struct stmpe811_dev_s *priv, uint8_t regaddr)
   ret = I2C_TRANSFER(priv->i2c, msg, 2);
   if (ret < 0)
     {
-      ierr("I2C_TRANSFER failed: %d\n", ret);
+      ierr("ERROR: I2C_TRANSFER failed: %d\n", ret);
       return 0;
     }
 
@@ -479,7 +479,7 @@ void stmpe811_putreg8(FAR struct stmpe811_dev_s *priv,
   ret = I2C_TRANSFER(priv->i2c, &msg, 1);
   if (ret < 0)
     {
-      ierr("I2C_TRANSFER failed: %d\n", ret);
+      ierr("ERROR: I2C_TRANSFER failed: %d\n", ret);
     }
 }
 #endif
@@ -530,7 +530,7 @@ uint16_t stmpe811_getreg16(FAR struct stmpe811_dev_s *priv, uint8_t regaddr)
   ret = I2C_TRANSFER(priv->i2c, msg, 2);
   if (ret < 0)
     {
-      ierr("I2C_TRANSFER failed: %d\n", ret);
+      ierr("ERROR: I2C_TRANSFER failed: %d\n", ret);
       return 0;
     }
 
diff --git a/drivers/input/stmpe811_gpio.c b/drivers/input/stmpe811_gpio.c
index e794f732bad..1af52ad1d73 100644
--- a/drivers/input/stmpe811_gpio.c
+++ b/drivers/input/stmpe811_gpio.c
@@ -144,7 +144,7 @@ int stmpe811_gpioconfig(STMPE811_HANDLE handle, uint8_t pinconfig)
   if (ret < 0)
     {
       int errval = errno;
-      ierr("sem_wait failed: %d\n", errval);
+      ierr("ERROR: sem_wait failed: %d\n", errval);
       return -errval;
     }
 
@@ -152,7 +152,7 @@ int stmpe811_gpioconfig(STMPE811_HANDLE handle, uint8_t pinconfig)
 
   if ((priv->inuse & pinmask) != 0)
     {
-      ierr("PIN%d is already in-use\n", pin);
+      ierr("ERROR: PIN%d is already in-use\n", pin);
       sem_post(&priv->exclsem);
       return -EBUSY;
     }
@@ -259,7 +259,7 @@ void stmpe811_gpiowrite(STMPE811_HANDLE handle, uint8_t pinconfig, bool value)
   ret = sem_wait(&priv->exclsem);
   if (ret < 0)
     {
-      ierr("sem_wait failed: %d\n", errno);
+      ierr("ERROR: sem_wait failed: %d\n", errno);
       return;
     }
 
@@ -313,7 +313,7 @@ int stmpe811_gpioread(STMPE811_HANDLE handle, uint8_t pinconfig, bool *value)
   if (ret < 0)
     {
       int errval = errno;
-      ierr("sem_wait failed: %d\n", errval);
+      ierr("ERROR: sem_wait failed: %d\n", errval);
       return -errval;
     }
 
@@ -362,7 +362,7 @@ int stmpe811_gpioattach(STMPE811_HANDLE handle, uint8_t pinconfig,
   if (ret < 0)
     {
       int errval = errno;
-      ierr("sem_wait failed: %d\n", errval);
+      ierr("ERROR: sem_wait failed: %d\n", errval);
       return -errval;
     }
 
@@ -438,7 +438,7 @@ void stmpe811_gpioworker(FAR struct stmpe811_dev_s *priv)
             }
           else
             {
-              illerr("No handler for PIN%d, GPIO_INTSTA: %02x\n", pin, regval);
+              illerr("ERROR: No handler for PIN%d, GPIO_INTSTA: %02x\n", pin, regval);
             }
 
           /* Clear the pending GPIO interrupt by writing a '1' to the
diff --git a/drivers/input/stmpe811_tsc.c b/drivers/input/stmpe811_tsc.c
index b41f3256858..8ab3d8fd5aa 100644
--- a/drivers/input/stmpe811_tsc.c
+++ b/drivers/input/stmpe811_tsc.c
@@ -786,7 +786,7 @@ static void stmpe811_timeout(int argc, uint32_t arg1, ...)
           ret = work_queue(HPWORK, &priv->timeout, stmpe811_timeoutworker, priv, 0);
           if (ret != 0)
             {
-              illerr("Failed to queue work: %d\n", ret);
+              illerr("ERROR: Failed to queue work: %d\n", ret);
             }
         }
     }
diff --git a/drivers/input/tsc2007.c b/drivers/input/tsc2007.c
index 13616176216..7b2e90b104f 100644
--- a/drivers/input/tsc2007.c
+++ b/drivers/input/tsc2007.c
@@ -456,7 +456,7 @@ static int tsc2007_activate(FAR struct tsc2007_dev_s *priv, uint8_t cmd)
    ret = I2C_TRANSFER(priv->i2c, &msg, 1);
    if (ret < 0)
      {
-       ierr("I2C_TRANSFER failed: %d\n", ret);
+       ierr("ERROR: I2C_TRANSFER failed: %d\n", ret);
      }
    return ret;
 }
@@ -495,7 +495,7 @@ static int tsc2007_transfer(FAR struct tsc2007_dev_s *priv, uint8_t cmd)
    ret = I2C_TRANSFER(priv->i2c, &msg, 1);
    if (ret < 0)
      {
-       ierr("I2C_TRANSFER failed: %d\n", ret);
+       ierr("ERROR: I2C_TRANSFER failed: %d\n", ret);
        return ret;
      }
 
@@ -540,7 +540,7 @@ static int tsc2007_transfer(FAR struct tsc2007_dev_s *priv, uint8_t cmd)
    ret = I2C_TRANSFER(priv->i2c, &msg, 1);
    if (ret < 0)
      {
-       ierr("I2C_TRANSFER failed: %d\n", ret);
+       ierr("ERROR: I2C_TRANSFER failed: %d\n", ret);
        return ret;
      }
 
@@ -672,7 +672,7 @@ static void tsc2007_worker(FAR void *arg)
 
       if (z1 == 0)
         {
-          ierr("Z1 zero\n");
+          ierr("ERROR: Z1 zero\n");
           pressure = 0;
         }
       else
@@ -687,7 +687,7 @@ static void tsc2007_worker(FAR void *arg)
 
           if (pressure > 0x0fff)
             {
-              ierr("Dropped out-of-range pressure: %d\n", pressure);
+              ierr("ERROR: Dropped out-of-range pressure: %d\n", pressure);
               pressure = 0;
             }
         }
@@ -783,7 +783,7 @@ static int tsc2007_interrupt(int irq, FAR void *context)
   ret = work_queue(HPWORK, &priv->work, tsc2007_worker, priv, 0);
   if (ret != 0)
     {
-      illerr("Failed to queue work: %d\n", ret);
+      illerr("ERROR: Failed to queue work: %d\n", ret);
     }
 
   /* Clear any pending interrupts and return success */
@@ -1131,7 +1131,7 @@ static int tsc2007_poll(FAR struct file *filep, FAR struct pollfd *fds,
 
       if ((fds->events & POLLIN) == 0)
         {
-          ierr("Missing POLLIN: revents: %08x\n", fds->revents);
+          ierr("ERROR: Missing POLLIN: revents: %08x\n", fds->revents);
           ret = -EDEADLK;
           goto errout;
         }
@@ -1156,7 +1156,7 @@ static int tsc2007_poll(FAR struct file *filep, FAR struct pollfd *fds,
 
       if (i >= CONFIG_TSC2007_NPOLLWAITERS)
         {
-          ierr("No availabled slot found: %d\n", i);
+          ierr("ERROR: No available slot found: %d\n", i);
           fds->priv    = NULL;
           ret          = -EBUSY;
           goto errout;
@@ -1242,7 +1242,7 @@ int tsc2007_register(FAR struct i2c_master_s *dev,
   priv = (FAR struct tsc2007_dev_s *)kmm_malloc(sizeof(struct tsc2007_dev_s));
   if (!priv)
     {
-      ierr("kmm_malloc(%d) failed\n", sizeof(struct tsc2007_dev_s));
+      ierr("ERROR: kmm_malloc(%d) failed\n", sizeof(struct tsc2007_dev_s));
       return -ENOMEM;
     }
 #endif
@@ -1265,7 +1265,7 @@ int tsc2007_register(FAR struct i2c_master_s *dev,
   ret = config->attach(config, tsc2007_interrupt);
   if (ret < 0)
     {
-      ierr("Failed to attach interrupt\n");
+      ierr("ERROR: Failed to attach interrupt\n");
       goto errout_with_priv;
     }
 
@@ -1276,7 +1276,7 @@ int tsc2007_register(FAR struct i2c_master_s *dev,
   ret = tsc2007_transfer(priv, TSC2007_ENABLE_PENIRQ);
   if (ret < 0)
     {
-      ierr("tsc2007_transfer failed: %d\n", ret);
+      ierr("ERROR: tsc2007_transfer failed: %d\n", ret);
       goto errout_with_priv;
     }
 
@@ -1288,7 +1288,7 @@ int tsc2007_register(FAR struct i2c_master_s *dev,
   ret = register_driver(devname, &tsc2007_fops, 0666, priv);
   if (ret < 0)
     {
-      ierr("register_driver() failed: %d\n", ret);
+      ierr("ERROR: register_driver() failed: %d\n", ret);
       goto errout_with_priv;
     }
 
@@ -1311,7 +1311,7 @@ int tsc2007_register(FAR struct i2c_master_s *dev,
   ret = work_queue(HPWORK, &priv->work, tsc2007_worker, priv, 0);
   if (ret != 0)
     {
-      ierr("Failed to queue work: %d\n", ret);
+      ierr("ERROR: Failed to queue work: %d\n", ret);
       goto errout_with_priv;
     }
 
diff --git a/drivers/lcd/ili9341.c b/drivers/lcd/ili9341.c
index af6ffaef168..a920a12f0a0 100644
--- a/drivers/lcd/ili9341.c
+++ b/drivers/lcd/ili9341.c
@@ -371,9 +371,11 @@
 
 #ifdef CONFIG_DEBUG_LCD
 #  define lcderr       err
+#  define lcdinfo      warn
 #  define lcdinfo      info
 #else
 #  define lcderr(x...)
+#  define lcdwarn(x...)
 #  define lcdinfo(x...)
 #endif
 
@@ -772,7 +774,7 @@ static int ili9341_hwinitialize(FAR struct ili9341_dev_s *dev)
 
   /* Select spi device */
 
-  lcderr("Initialize lcd driver\n");
+  lcdinfo("Initialize lcd driver\n");
   lcd->select(lcd);
 
 #ifdef CONFIG_DEBUG_LCD
@@ -780,13 +782,13 @@ static int ili9341_hwinitialize(FAR struct ili9341_dev_s *dev)
 
   lcd->sendcmd(lcd, ILI9341_READ_ID1);
   lcd->recvparam(lcd, &param);
-  lcderr("ili9341 LCD driver: LCD modules manufacturer ID: %d\n", param);
+  lcdinfo("ili9341 LCD driver: LCD modules manufacturer ID: %d\n", param);
   lcd->sendcmd(lcd, ILI9341_READ_ID2);
   lcd->recvparam(lcd, &param);
-  lcderr("ili9341 LCD driver: LCD modules driver version ID: %d\n", param);
+  lcdinfo("ili9341 LCD driver: LCD modules driver version ID: %d\n", param);
   lcd->sendcmd(lcd, ILI9341_READ_ID3);
   lcd->recvparam(lcd, &param);
-  lcderr("ili9341 LCD driver: LCD modules driver ID: %d\n", param);
+  lcdinfo("ili9341 LCD driver: LCD modules driver ID: %d\n", param);
 #endif
 
   /* Reset the lcd display to the default state */
@@ -1020,7 +1022,7 @@ static int ili9341_getpower(FAR struct lcd_dev_s *dev)
 
   if (priv)
     {
-      lcderr("%d\n", priv->power);
+      lcdinfo("%d\n", priv->power);
 
       return priv->power;
     }
@@ -1053,7 +1055,7 @@ static int ili9341_setpower(FAR struct lcd_dev_s *dev, int power)
 
   if (dev)
     {
-      lcderr("%d\n", power);
+      lcdinfo("%d\n", power);
 
       lcd->select(lcd);
 
diff --git a/drivers/lcd/memlcd.c b/drivers/lcd/memlcd.c
index 37d76345fbb..b9e31ed75ca 100644
--- a/drivers/lcd/memlcd.c
+++ b/drivers/lcd/memlcd.c
@@ -113,9 +113,11 @@
 
 #ifdef CONFIG_DEBUG_LCD
 #  define lcderr(format, ...)  err(format, ##__VA_ARGS__)
+#  define lcdwarn(format, ...) warn(format, ##__VA_ARGS__)
 #  define lcdinfo(format, ...) info(format, ##__VA_ARGS__)
 #else
 #  define lcderr(x...)
+#  define lcdwarn(x...)
 #  define lcdinfo(x...)
 #endif
 
@@ -339,7 +341,8 @@ static void memlcd_deselect(FAR struct spi_dev_s *spi)
 static inline void memlcd_clear(FAR struct memlcd_dev_s *mlcd)
 {
   uint16_t cmd = MEMLCD_CMD_ALL_CLEAR;
-  lcderr("Clear display\n");
+
+  lcdinfo("Clear display\n");
   memlcd_select(mlcd->spi);
   /* XXX Ensure 2us here */
   SPI_SNDBLOCK(mlcd->spi, &cmd, 2);
@@ -593,8 +596,9 @@ static int memlcd_getplaneinfo(FAR struct lcd_dev_s *dev, unsigned int planeno,
 static int memlcd_getpower(FAR struct lcd_dev_s *dev)
 {
   FAR struct memlcd_dev_s *mlcd = (FAR struct memlcd_dev_s *)dev;
+
   DEBUGASSERT(mlcd);
-  lcderr("%d\n", mlcd->power);
+  lcdinfo("%d\n", mlcd->power);
   return mlcd->power;
 }
 
@@ -610,8 +614,9 @@ static int memlcd_getpower(FAR struct lcd_dev_s *dev)
 static int memlcd_setpower(FAR struct lcd_dev_s *dev, int power)
 {
   struct memlcd_dev_s *mlcd = (struct memlcd_dev_s *)dev;
+
   DEBUGASSERT(mlcd && (unsigned)power <= CONFIG_LCD_MAXPOWER && mlcd->spi);
-  lcderr("%d\n", power);
+  lcdinfo("%d\n", power);
   mlcd->power = power;
 
   if (power > 0)
@@ -638,8 +643,9 @@ static int memlcd_setpower(FAR struct lcd_dev_s *dev, int power)
 static int memlcd_getcontrast(struct lcd_dev_s *dev)
 {
   struct memlcd_dev_s *mlcd = (struct memlcd_dev_s *)dev;
+
   DEBUGASSERT(mlcd);
-  lcderr("contrast: %d\n", mlcd->contrast);
+  lcdinfo("contrast: %d\n", mlcd->contrast);
   return mlcd->contrast;
 }
 
@@ -654,8 +660,9 @@ static int memlcd_getcontrast(struct lcd_dev_s *dev)
 static int memlcd_setcontrast(struct lcd_dev_s *dev, unsigned int contrast)
 {
   struct memlcd_dev_s *mlcd = (struct memlcd_dev_s *)dev;
+
   DEBUGASSERT(mlcd);
-  lcderr("contrast: %d\n", contrast);
+  lcdinfo("contrast: %d\n", contrast);
   if (contrast > MEMLCD_MAXCONTRAST)
     {
       contrast = MEMLCD_MAXCONTRAST;
@@ -710,6 +717,6 @@ FAR struct lcd_dev_s *memlcd_initialize(FAR struct spi_dev_s *spi,
 
   mlcd->priv->attachirq(memlcd_extcominisr);
 
-  lcderr("done\n");
+  lcdinfo("done\n");
   return &mlcd->dev;
 }
diff --git a/drivers/lcd/mio283qt2.c b/drivers/lcd/mio283qt2.c
index 531f83e6d08..96f97b61097 100644
--- a/drivers/lcd/mio283qt2.c
+++ b/drivers/lcd/mio283qt2.c
@@ -241,9 +241,11 @@
 
 #ifdef CONFIG_DEBUG_LCD
 #  define lcderr              err
+#  define lcdwarn             warn
 #  define lcdinfo             info
 #else
 #  define lcderr(x...)
+#  define lcdwarn(x...)
 #  define lcdinfo(x...)
 #endif
 
@@ -820,7 +822,7 @@ static inline int mio283qt2_hwinitialize(FAR struct mio283qt2_dev_s *priv)
 
 #ifndef CONFIG_LCD_NOGETRUN
   id = mio283qt2_readreg(lcd, 0x00);
-  lcderr("LCD ID: %04x\n", id);
+  lcdinfo("LCD ID: %04x\n", id);
 
   /* Check if the ID is for the MIO283QT2 */
 
@@ -926,7 +928,7 @@ static inline int mio283qt2_hwinitialize(FAR struct mio283qt2_dev_s *priv)
 #ifndef CONFIG_LCD_NOGETRUN
   else
     {
-      lcderr("Unsupported LCD type\n");
+      lcderr("ERROR: Unsupported LCD type\n");
       ret = -ENODEV;
     }
 #endif
diff --git a/drivers/lcd/mio283qt9a.c b/drivers/lcd/mio283qt9a.c
index e4eb342a698..9b50bc183d6 100644
--- a/drivers/lcd/mio283qt9a.c
+++ b/drivers/lcd/mio283qt9a.c
@@ -140,9 +140,11 @@
 
 #ifdef CONFIG_DEBUG_LCD
 #  define lcderr              err
+#  define lcdwarn             warn
 #  define lcdinfo             info
 #else
 #  define lcderr(x...)
+#  define lcdwarn(x...)
 #  define lcdinfo(x...)
 #endif
 
@@ -819,7 +821,7 @@ static inline int mio283qt9a_hwinitialize(FAR struct mio283qt9a_dev_s *priv)
 #ifndef CONFIG_LCD_NOGETRUN
   else
     {
-      lcderr("Unsupported LCD type\n");
+      lcderr("ERROR: Unsupported LCD type\n");
       ret = -ENODEV;
     }
 #endif
diff --git a/drivers/lcd/nokia6100.c b/drivers/lcd/nokia6100.c
index 227220d6f37..eafcb10fd8b 100644
--- a/drivers/lcd/nokia6100.c
+++ b/drivers/lcd/nokia6100.c
@@ -308,9 +308,13 @@
 /* Debug ******************************************************************************/
 
 #ifdef CONFIG_LCD_REGDEBUG
-# define lcderr(format, ...) llinfo(format, ##__VA_ARGS__)
+# define lcderr(format, ...)  llerr(format, ##__VA_ARGS__)
+# define lcdwarn(format, ...) llwarn(format, ##__VA_ARGS__)
+# define lcdinfo(format, ...) llinfo(format, ##__VA_ARGS__)
 #else
 # define lcderr(x...)
+# define lcdwarn(x...)
+# define lcdinfo(x...)
 #endif
 
 /**************************************************************************************
@@ -666,7 +670,8 @@ static void nokia_select(FAR struct spi_dev_s *spi)
    * devices competing for the SPI bus
    */
 
-  lcderr("SELECTED\n");
+  lcdinfo("SELECTED\n");
+
   SPI_LOCK(spi, true);
   SPI_SELECT(spi, SPIDEV_DISPLAY, true);
 
@@ -700,7 +705,8 @@ static void nokia_deselect(FAR struct spi_dev_s *spi)
 {
   /* De-select Nokia 6100 chip and relinquish the SPI bus. */
 
-  lcderr("DE-SELECTED\n");
+  lcdinfo("DE-SELECTED\n");
+
   SPI_SELECT(spi, SPIDEV_DISPLAY, false);
   SPI_LOCK(spi, false);
 }
@@ -717,7 +723,8 @@ static void nokia_sndcmd(FAR struct spi_dev_s *spi, const uint8_t cmd)
 {
   /* Select the LCD */
 
-  lcderr("cmd: %02x\n", cmd);
+  lcdinfo("cmd: %02x\n", cmd);
+
   nokia_select(spi);
 
   /* Send the command. Bit 8 == 0 denotes a command */
@@ -743,7 +750,7 @@ static void nokia_cmddata(FAR struct spi_dev_s *spi, uint8_t cmd, int datlen,
   uint16_t *rowbuf = g_rowbuf;
   int i;
 
-  lcderr("cmd: %02x datlen: %d\n", cmd, datlen);
+  lcdinfo("cmd: %02x datlen: %d\n", cmd, datlen);
   DEBUGASSERT(datlen <= NOKIA_STRIDE);
 
   /* Copy the command into the line buffer. Bit 8 == 0 denotes a command. */
@@ -800,7 +807,7 @@ static void nokia_cmdarray(FAR struct spi_dev_s *spi, int len, const uint8_t *cm
 
   for (i = 0; i < len; i++)
     {
-      lcderr("cmddata[%d]: %02x\n", i, cmddata[i]);
+      lcdinfo("cmddata[%d]: %02x\n", i, cmddata[i]);
     }
 #endif
   nokia_cmddata(spi, cmddata[0], len-1, &cmddata[1]);
diff --git a/drivers/lcd/p14201.c b/drivers/lcd/p14201.c
index ad1513e05d3..f7d2d91b970 100644
--- a/drivers/lcd/p14201.c
+++ b/drivers/lcd/p14201.c
@@ -180,9 +180,13 @@
 /* Debug ******************************************************************************/
 
 #ifdef CONFIG_LCD_RITDEBUG
-#  define riterr(format, ...)  info(format, ##__VA_ARGS__)
+#  define riterr(format, ...)  err(format, ##__VA_ARGS__)
+#  define ritwarn(format, ...) warn(format, ##__VA_ARGS__)
+#  define ritinfo(format, ...) info(format, ##__VA_ARGS__)
 #else
 #  define riterr(x...)
+#  define ritwarn(x...)
+#  define ritinfo(x...)
 #endif
 
 /**************************************************************************************
@@ -508,8 +512,8 @@ static void rit_sndbytes(FAR struct rit_dev_s *priv, FAR const uint8_t *buffer,
   FAR struct spi_dev_s *spi = priv->spi;
   uint8_t tmp;
 
-  riterr("buflen: %d cmd: %s [%02x %02x %02x]\n",
-         buflen, cmd ? "YES" : "NO", buffer[0], buffer[1], buffer[2]);
+  ritinfo("buflen: %d cmd: %s [%02x %02x %02x]\n",
+          buflen, cmd ? "YES" : "NO", buffer[0], buffer[1], buffer[2]);
   DEBUGASSERT(spi);
 
   /* Clear/set the D/Cn bit to enable command or data mode */
@@ -552,7 +556,8 @@ static void rit_sndcmds(FAR struct rit_dev_s *priv, FAR const uint8_t *table)
 
   while ((cmdlen = *table++) != 0)
     {
-      riterr("command: %02x cmdlen: %d\n", *table, cmdlen);
+      ritinfo("command: %02x cmdlen: %d\n", *table, cmdlen);
+
       rit_sndcmd(priv, table, cmdlen);
       table += cmdlen;
     }
@@ -578,7 +583,7 @@ static inline void rit_clear(FAR struct rit_dev_s *priv)
   FAR uint8_t *ptr = g_framebuffer;
   unsigned int row;
 
-  riterr("Clear display\n");
+  ritinfo("Clear display\n");
 
   /* Initialize the framebuffer */
 
@@ -605,7 +610,7 @@ static inline void rit_clear(FAR struct rit_dev_s *priv)
 {
   unsigned int row;
 
-  riterr("Clear display\n");
+  ritinfo("Clear display\n");
 
   /* Create a black row */
 
@@ -655,7 +660,7 @@ static int rit_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_t *buffer,
   int aend;
   int i;
 
-  riterr("row: %d col: %d npixels: %d\n", row, col, npixels);
+  ritinfo("row: %d col: %d npixels: %d\n", row, col, npixels);
   DEBUGASSERT(buffer);
 
   /* Toss out the special case of the empty run now */
@@ -678,7 +683,8 @@ static int rit_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_t *buffer,
   start = col >> 1;
   aend  = (col + npixels) >> 1;
   end   = (col + npixels + 1) >> 1;
-  riterr("start: %d aend: %d end: %d\n", start, aend, end);
+
+  ritinfo("start: %d aend: %d end: %d\n", start, aend, end);
 
   /* Copy the run into the framebuffer, handling nibble alignment.
    *
@@ -814,7 +820,7 @@ static int rit_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_t *buffer,
   FAR struct rit_dev_s *priv = (FAR struct rit_dev_s *)&g_oleddev;
   uint8_t cmd[3];
 
-  riterr("row: %d col: %d npixels: %d\n", row, col, npixels);
+  ritinfo("row: %d col: %d npixels: %d\n", row, col, npixels);
   DEBUGASSERT(buffer);
 
   if (npixels > 0)
@@ -885,7 +891,7 @@ static int rit_getrun(fb_coord_t row, fb_coord_t col, FAR uint8_t *buffer,
   int aend;
   int i;
 
-  riterr("row: %d col: %d npixels: %d\n", row, col, npixels);
+  ritinfo("row: %d col: %d npixels: %d\n", row, col, npixels);
   DEBUGASSERT(buffer);
 
   /* Can't read from OLED GDDRAM in SPI mode, but we can read from the framebuffer */
diff --git a/drivers/lcd/pcf8574_lcd_backpack.c b/drivers/lcd/pcf8574_lcd_backpack.c
index e0fa2315faa..9f802aa1b1b 100644
--- a/drivers/lcd/pcf8574_lcd_backpack.c
+++ b/drivers/lcd/pcf8574_lcd_backpack.c
@@ -80,9 +80,11 @@
 
 #ifdef CONFIG_DEBUG_LCD
 #  define lcderr            err
+#  define lcdwarn           warn
 #  define lcdinfo           info
 #else
 #  define lcderr(x...)
+#  define lcdwarn(x...)
 #  define lcdinfo(x...)
 #endif
 
diff --git a/drivers/lcd/ra8875.c b/drivers/lcd/ra8875.c
index 96c7a637ff4..a046c7af64a 100644
--- a/drivers/lcd/ra8875.c
+++ b/drivers/lcd/ra8875.c
@@ -574,18 +574,18 @@ static void ra8875_showrun(FAR struct ra8875_dev_s *priv, fb_coord_t row,
 
       if (priv->firstrow != priv->lastrow)
         {
-          lcderr("...\n");
-          lcderr("%s row: %d col: %d npixels: %d\n",
-                 priv->put ? "PUT" : "GET",
-                 priv->lastrow, priv->col, priv->npixels);
+          lcdinfo("...\n");
+          lcdinfo("%s row: %d col: %d npixels: %d\n",
+                  priv->put ? "PUT" : "GET",
+                  priv->lastrow, priv->col, priv->npixels);
         }
 
       /* And we are starting a new sequence.  Output the first run of the
        * new sequence
        */
 
-      lcderr("%s row: %d col: %d npixels: %d\n",
-             put ? "PUT" : "GET", row, col, npixels);
+      lcdinfo("%s row: %d col: %d npixels: %d\n",
+              put ? "PUT" : "GET", row, col, npixels);
 
       /* And save information about the run so that we can detect continuations
        * of the sequence.
diff --git a/drivers/lcd/skeleton.c b/drivers/lcd/skeleton.c
index 53b343b3a67..3bcfc9bcf10 100644
--- a/drivers/lcd/skeleton.c
+++ b/drivers/lcd/skeleton.c
@@ -90,9 +90,13 @@
 /* Debug ******************************************************************************/
 
 #ifdef CONFIG_LCD_SKELDEBUG
-# define skelerr(format, ...)  info(format, ##__VA_ARGS__)
+# define skelerr(format, ...)  err(format, ##__VA_ARGS__)
+# define skelwarn(format, ...) warn(format, ##__VA_ARGS__)
+# define skelinfo(format, ...) info(format, ##__VA_ARGS__)
 #else
 # define skelerr(x...)
+# define skelwarn(x...)
+# define skelinfo(x...)
 #endif
 
 /**************************************************************************************
diff --git a/drivers/lcd/ssd1289.c b/drivers/lcd/ssd1289.c
index fcd124f6dc3..ea89ce3929c 100644
--- a/drivers/lcd/ssd1289.c
+++ b/drivers/lcd/ssd1289.c
@@ -230,9 +230,11 @@
 
 #ifdef CONFIG_DEBUG_LCD
 #  define lcderr  err
+#  define lcdwarn  warn
 #  define lcdinfo info
 #else
 #  define lcderr(x...)
+#  define lcdwarn(x...)
 #  define lcdinfo(x...)
 #endif
 
@@ -543,18 +545,18 @@ static void ssd1289_showrun(FAR struct ssd1289_dev_s *priv, fb_coord_t row,
 
       if (priv->firstrow != priv->lastrow)
         {
-          lcderr("...\n");
-          lcderr("%s row: %d col: %d npixels: %d\n",
-                 priv->put ? "PUT" : "GET",
-                 priv->lastrow, priv->col, priv->npixels);
+          lcdinfo("...\n");
+          lcdinfo("%s row: %d col: %d npixels: %d\n",
+                  priv->put ? "PUT" : "GET",
+                  priv->lastrow, priv->col, priv->npixels);
         }
 
       /* And we are starting a new sequence.  Output the first run of the
        * new sequence
        */
 
-      lcderr("%s row: %d col: %d npixels: %d\n",
-             put ? "PUT" : "GET", row, col, npixels);
+      lcdinfo("%s row: %d col: %d npixels: %d\n",
+              put ? "PUT" : "GET", row, col, npixels);
 
       /* And save information about the run so that we can detect continuations
        * of the sequence.
@@ -1020,7 +1022,7 @@ static inline int ssd1289_hwinitialize(FAR struct ssd1289_dev_s *priv)
   id = ssd1289_readreg(lcd, SSD1289_DEVCODE);
   if (id != 0)
     {
-      lcderr("LCD ID: %04x\n", id);
+      lcdinfo("LCD ID: %04x\n", id);
     }
 
   /* If we could not get the ID, then let's just assume that this is an SSD1289.
@@ -1030,7 +1032,7 @@ static inline int ssd1289_hwinitialize(FAR struct ssd1289_dev_s *priv)
 
   else
     {
-      lcderr("No LCD ID, assuming SSD1289\n");
+      lcdwarn("WARNING: No LCD ID, assuming SSD1289\n");
       id = SSD1289_DEVCODE_VALUE;
     }
 
@@ -1273,7 +1275,7 @@ static inline int ssd1289_hwinitialize(FAR struct ssd1289_dev_s *priv)
 #ifndef CONFIG_LCD_NOGETRUN
   else
     {
-      lcderr("Unsupported LCD type\n");
+      lcderr("ERROR: Unsupported LCD type\n");
       ret = -ENODEV;
     }
 #endif
diff --git a/drivers/lcd/ssd1306_i2c.c b/drivers/lcd/ssd1306_i2c.c
index a3c30fd7029..343a0e31998 100644
--- a/drivers/lcd/ssd1306_i2c.c
+++ b/drivers/lcd/ssd1306_i2c.c
@@ -94,7 +94,7 @@ void ssd1306_sendbyte(FAR struct ssd1306_dev_s *priv, uint8_t regval)
   ret = I2C_TRANSFER(priv->i2c, &msg, 1);
   if (ret < 0)
     {
-      snerr("I2C_TRANSFER failed: %d\n", ret);
+      snerr("ERROR: I2C_TRANSFER failed: %d\n", ret);
     }
 }
 
@@ -130,7 +130,7 @@ void ssd1306_sendblk(FAR struct ssd1306_dev_s *priv, uint8_t *data, uint8_t len)
   ret = I2C_TRANSFER(priv->i2c, &msg, 1);
   if (ret < 0)
     {
-      snerr("I2C_TRANSFER failed: %d\n", ret);
+      snerr("ERROR: I2C_TRANSFER failed: %d\n", ret);
     }
 }
 
diff --git a/drivers/lcd/ssd1351.c b/drivers/lcd/ssd1351.c
index a9e799e7ca4..f88c85ff85c 100644
--- a/drivers/lcd/ssd1351.c
+++ b/drivers/lcd/ssd1351.c
@@ -499,7 +499,8 @@ static void ssd1351_select(FAR struct ssd1351_dev_s *priv)
    * competing for the SPI bus
    */
 
-  gerr("SELECTED\n");
+  ginfo("SELECTED\n");
+
   SPI_LOCK(spi, true);
   SPI_SELECT(spi, SPIDEV_DISPLAY, true);
 
@@ -529,7 +530,8 @@ static void ssd1351_deselect(FAR struct ssd1351_dev_s *priv)
 
   /* De-select the chip and relinquish the SPI bus */
 
-  gerr("DE-SELECTED\n");
+  ginfo("DE-SELECTED\n");
+
   SPI_SELECT(spi, SPIDEV_DISPLAY, false);
   SPI_LOCK(spi, false);
 }
diff --git a/drivers/lcd/st7565.c b/drivers/lcd/st7565.c
index b50b8736475..0e52b58a3ec 100644
--- a/drivers/lcd/st7565.c
+++ b/drivers/lcd/st7565.c
@@ -176,14 +176,6 @@
 #define LS_BIT          (1 << 0)
 #define MS_BIT          (1 << 7)
 
-/* Debug ******************************************************************************/
-
-#ifdef CONFIG_LCD_ST7565DEBUG
-#  define st7565err(format, ...)  info(format, ##__VA_ARGS__)
-#else
-#  define st7565err(x...)
-#endif
-
 /**************************************************************************************
  * Private Type Definition
  **************************************************************************************/
diff --git a/drivers/lcd/st7567.c b/drivers/lcd/st7567.c
index 05bce776f96..a1f8b136612 100644
--- a/drivers/lcd/st7567.c
+++ b/drivers/lcd/st7567.c
@@ -206,14 +206,6 @@
 #define LS_BIT          (1 << 0)
 #define MS_BIT          (1 << 7)
 
-/* Debug ******************************************************************************/
-
-#ifdef CONFIG_LCD_ST7567DEBUG
-# define st7567err(format, ...)  info(format, ##__VA_ARGS__)
-#else
-# define st7567err(x...)
-#endif
-
 /**************************************************************************************
  * Private Type Definition
  **************************************************************************************/
diff --git a/drivers/lcd/ug-9664hswag01.c b/drivers/lcd/ug-9664hswag01.c
index b93b5e60f34..e69694367ec 100644
--- a/drivers/lcd/ug-9664hswag01.c
+++ b/drivers/lcd/ug-9664hswag01.c
@@ -221,14 +221,6 @@
 #define LS_BIT          (1 << 0)
 #define MS_BIT          (1 << 7)
 
-/* Debug ******************************************************************************/
-
-#ifdef CONFIG_DEBUG_LCD
-# define lcderr(format, ...)  info(format, ##__VA_ARGS__)
-#else
-# define lcderr(x...)
-#endif
-
 /**************************************************************************************
  * Private Type Definition
  **************************************************************************************/