Add option to make CDC TX buffer persistent.

hathach · May 7, 2024 · 3eb9a35 · 3eb9a35
1 parent 1fdf290
commit 3eb9a35
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/class/cdc/cdc_device.c b/src/class/cdc/cdc_device.c
@@ -268,7 +268,9 @@ void cdcd_reset(uint8_t rhport)
 
     tu_memclr(p_cdc, ITF_MEM_RESET_SIZE);
     tu_fifo_clear(&p_cdc->rx_ff);
+    #if !CFG_TUD_CDC_PERSISTENT_TX_BUFF
     tu_fifo_clear(&p_cdc->tx_ff);
+    #endif
     tu_fifo_set_overwritable(&p_cdc->tx_ff, true);
   }
 }