patrick/zephyr
1
0
Fork 0
Code Issues Pull requests Actions 7 Packages Projects Releases Wiki Activity

drivers: serial: Add error code to uart_rx_buf_rsp

Browse source 
API did not cover a case when uart_rx_buf_rsp is called when receiver
is already disabled. It may happen if uart_rx_buf_rsp is called too
late and active transfer is already finished. In that case -EACCES is
returned.

Some implementations already returned that error in that case.

Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
This commit is contained in:
Krzysztof Chruscinski 2020-07-29 13:17:49 +02:00 committed by Carles Cufí
parent fb44188ebb
commit 2891256b67
1 changed files with 1 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
include/drivers/uart.h
View file

@ -557,6 +557,7 @@ static inline int z_impl_uart_rx_enable(struct device *dev, uint8_t *buf,
*
* @retval -ENOTSUP If not supported.
* @retval -EBUSY Next buffer already set.
* @retval -EACCES Receiver is already disabled (function called too late?).
* @retval 0 If successful, negative errno code otherwise.
*
*/