diff options
Diffstat (limited to 'src/class')
| -rw-r--r-- | src/class/cdc/cdc_device.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/class/cdc/cdc_device.c b/src/class/cdc/cdc_device.c index 70d9c2e24..c26264e60 100644 --- a/src/class/cdc/cdc_device.c +++ b/src/class/cdc/cdc_device.c @@ -150,7 +150,7 @@ uint32_t tud_cdc_n_available(uint8_t itf) uint32_t tud_cdc_n_read(uint8_t itf, void* buffer, uint32_t bufsize) { cdcd_interface_t* p_cdc = &_cdcd_itf[itf]; - uint32_t num_read = tu_fifo_read_n(&p_cdc->rx_ff, buffer, (uint16_t) bufsize); + uint32_t num_read = tu_fifo_read_n(&p_cdc->rx_ff, buffer, (uint16_t) TU_MIN(bufsize, UINT16_MAX)); _prep_out_transaction(p_cdc); return num_read; } @@ -173,7 +173,7 @@ void tud_cdc_n_read_flush (uint8_t itf) uint32_t tud_cdc_n_write(uint8_t itf, void const* buffer, uint32_t bufsize) { cdcd_interface_t* p_cdc = &_cdcd_itf[itf]; - uint16_t ret = tu_fifo_write_n(&p_cdc->tx_ff, buffer, (uint16_t) bufsize); + uint16_t ret = tu_fifo_write_n(&p_cdc->tx_ff, buffer, (uint16_t) TU_MIN(bufsize, UINT16_MAX)); // flush if queue more than packet size // may need to suppress -Wunreachable-code since most of the time CFG_TUD_CDC_TX_BUFSIZE < BULK_PACKET_SIZE |