Implementation of the discussed changes

- remove usbd_edpt_xfer_abort
- rename tu_fifo_change_mode to tu_fifo_set_mode
- remove CFG_TUD_CDC_CLEAR_AT_CONNECTION definition
- remove auto fifo clear at connection event
- add tud_cdc_n_write_clear function

1 files changed, 9 insertions, 4 deletions

diff --git a/src/class/cdc/cdc_device.h b/src/class/cdc/cdc_device.h
index 3bd2741bc..342025961 100644
--- a/src/class/cdc/cdc_device.h
+++ b/src/class/cdc/cdc_device.h
@@ -43,10 +43,6 @@
   #define CFG_TUD_CDC_EP_BUFSIZE    (TUD_OPT_HIGH_SPEED ? 512 : 64)
 #endif
 
-#ifndef CFG_TUD_CDC_CLEAR_AT_CONNECTION
-  #define CFG_TUD_CDC_CLEAR_AT_CONNECTION   0
-#endif
-
 #ifdef __cplusplus
  extern "C" {
 #endif
@@ -106,6 +102,9 @@ uint32_t tud_cdc_n_write_flush     (uint8_t itf);
 // Return the number of bytes (characters) available for writing to TX FIFO buffer in a single n_write operation.
 uint32_t tud_cdc_n_write_available (uint8_t itf);
 
+// Clear the transmit FIFO
+bool tud_cdc_n_write_clear (uint8_t itf);
+
 //--------------------------------------------------------------------+
 // Application API (Single Port)
 //--------------------------------------------------------------------+
@@ -125,6 +124,7 @@ static inline uint32_t tud_cdc_write           (void const* buffer, uint32_t buf
 static inline uint32_t tud_cdc_write_str       (char const* str);
 static inline uint32_t tud_cdc_write_flush     (void);
 static inline uint32_t tud_cdc_write_available (void);
+static inline bool     tud_cdc_write_clear     (void);
 
 //--------------------------------------------------------------------+
 // Application Callback API (weak is optional)
@@ -234,6 +234,11 @@ static inline uint32_t tud_cdc_write_available(void)
   return tud_cdc_n_write_available(0);
 }
 
+static inline bool tud_cdc_write_clear(void)
+{
+  return tud_cdc_n_write_clear(0);
+}
+
 /** @} */
 /** @} */