diff --git a/src/class/audio/audio_device.c b/src/class/audio/audio_device.c
index 2add741a8..425da4483 100644
--- a/src/class/audio/audio_device.c
+++ b/src/class/audio/audio_device.c
@@ -81,7 +81,7 @@
 
 // Only STM32 and dcd_transdimension use non-linear buffer for now
 // dwc2 except esp32sx (since it may use dcd_esp32sx)
-// Ring buffer is imcompatible with dcache, since neither address nor size is aligned to cache line
+// Ring buffer is incompatible with dcache, since neither address nor size is aligned to cache line
 #if (defined(TUP_USBIP_DWC2) && !TU_CHECK_MCU(OPT_MCU_ESP32S2, OPT_MCU_ESP32S3)) || \
     defined(TUP_USBIP_FSDEV)          || \
     CFG_TUSB_MCU == OPT_MCU_RX63X     || \
@@ -179,13 +179,13 @@ tu_static OUT_SW_BUF_MEM_ATTR struct {
 
   #if CFG_FIFO_MUTEX
     #if CFG_TUD_AUDIO_FUNC_1_EP_OUT_SW_BUF_SZ > 0
-      tu_static osal_mutex_def_t ep_out_ff_mutex_wr_1;
+      tu_static osal_mutex_def_t ep_out_ff_mutex_rd_1;
     #endif
     #if CFG_TUD_AUDIO > 1 && CFG_TUD_AUDIO_FUNC_2_EP_OUT_SW_BUF_SZ > 0
-      tu_static osal_mutex_def_t ep_out_ff_mutex_wr_2;
+      tu_static osal_mutex_def_t ep_out_ff_mutex_rd_2;
     #endif
     #if CFG_TUD_AUDIO > 2 && CFG_TUD_AUDIO_FUNC_3_EP_OUT_SW_BUF_SZ > 0
-      tu_static osal_mutex_def_t ep_out_ff_mutex_wr_3;
+      tu_static osal_mutex_def_t ep_out_ff_mutex_rd_3;
     #endif
   #endif
 #endif // CFG_TUD_AUDIO_ENABLE_EP_OUT && !CFG_TUD_AUDIO_ENABLE_DECODING
diff --git a/src/portable/chipidea/ci_hs/dcd_ci_hs.c b/src/portable/chipidea/ci_hs/dcd_ci_hs.c
index bacc1b99d..331fbfe80 100644
--- a/src/portable/chipidea/ci_hs/dcd_ci_hs.c
+++ b/src/portable/chipidea/ci_hs/dcd_ci_hs.c
@@ -467,7 +467,7 @@ bool dcd_edpt_xfer(uint8_t rhport, uint8_t ep_addr, uint8_t * buffer, uint16_t t
 
 #if !CFG_TUD_MEM_DCACHE_ENABLE
 // fifo has to be aligned to 4k boundary
-// It's imcompatible with dcache enabled transfer, since neither address nor size is aligned to cache line
+// It's incompatible with dcache enabled transfer, since neither address nor size is aligned to cache line
 bool dcd_edpt_xfer_fifo (uint8_t rhport, uint8_t ep_addr, tu_fifo_t * ff, uint16_t total_bytes)
 {
   uint8_t const epnum = tu_edpt_number(ep_addr);