diff options
| author | tswan-quasi <[email protected]> | 2023-08-14 08:49:52 -0400 |
|---|---|---|
| committer | tswan-quasi <[email protected]> | 2023-08-14 08:49:52 -0400 |
| commit | bd51afb091f29cdab6520479a1a504409d95aac8 (patch) | |
| tree | c976af1f435f497baddfec2b6f54b985922d145e /src | |
| parent | 92457ec99f1690b772ef9fa6b348256701c7fcf7 (diff) | |
min on cdc r/w
Diffstat (limited to 'src')
| -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..2c1fda4ff 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, 65535)); _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, 65535)); // 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 |