add tuh_cdc_peek()

2022-12-24 01:11:13 +07:00
parent 48f4d8b7f7
commit 48d4a67ec5
5 changed files with 17 additions and 3 deletions
--- a/src/class/cdc/cdc_host.h
+++ b/src/class/cdc/cdc_host.h
@@ -134,6 +134,9 @@ uint32_t tuh_cdc_read_available(uint8_t idx);
 // Read from cdc interface
 uint32_t tuh_cdc_read (uint8_t idx, void* buffer, uint32_t bufsize);

+// Get a byte from RX FIFO without removing it
+bool tuh_cdc_peek(uint8_t idx, uint8_t* ch);
+
 // Clear the received FIFO
 bool tuh_cdc_read_clear (uint8_t idx);