diff options
Diffstat (limited to 'firmware/targets/f6/furi_hal/furi_hal_vcp.c')
| -rw-r--r-- | firmware/targets/f6/furi_hal/furi_hal_vcp.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/firmware/targets/f6/furi_hal/furi_hal_vcp.c b/firmware/targets/f6/furi_hal/furi_hal_vcp.c index b09cc49a..4ac59ae3 100644 --- a/firmware/targets/f6/furi_hal/furi_hal_vcp.c +++ b/firmware/targets/f6/furi_hal/furi_hal_vcp.c @@ -77,6 +77,7 @@ static int32_t vcp_worker(void* context) { bool enabled = true; bool tx_idle = false; size_t missed_rx = 0; + uint8_t last_tx_pkt_len = 0; furi_hal_cdc_set_callbacks(VCP_IF_NUM, &cdc_cb, NULL); @@ -184,8 +185,16 @@ static int32_t vcp_worker(void* context) { if(len > 0) { // Some data left in Tx buffer. Sending it now tx_idle = false; furi_hal_cdc_send(VCP_IF_NUM, vcp->data_buffer, len); - } else { // There is nothing to send. Set flag to start next transfer instantly - tx_idle = true; + last_tx_pkt_len = len; + } else { // There is nothing to send. + if(last_tx_pkt_len == 64) { + // Send extra zero-length packet if last packet len is 64 to indicate transfer end + furi_hal_cdc_send(VCP_IF_NUM, NULL, 0); + } else { + // Set flag to start next transfer instantly + tx_idle = true; + } + last_tx_pkt_len = 0; } } } |