diff options
Diffstat (limited to 'src/include/sys/msg.h')
-rw-r--r-- | src/include/sys/msg.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/src/include/sys/msg.h b/src/include/sys/msg.h index 215da312e..be7ba397a 100644 --- a/src/include/sys/msg.h +++ b/src/include/sys/msg.h @@ -171,7 +171,11 @@ ALWAYS_INLINE * * @param[in] q - message queue * @param[in] msg - message - * @return Always returns zero. + * + * @return Status of message send. + * @retval 0 - Success + * @retval -EINVAL - Invalid pointer passed to kernel. + * @retval -EINVAL - Message type is in kernel range. */ int msg_send(msg_q_t q, msg_t* msg); @@ -197,7 +201,10 @@ int msg_sendrecv(msg_q_t q, msg_t* msg); * * @param[in] q - message queue * @param[in] msg - response message + * * @return Zero on success, else negative. + * @retval -EBADF - Message was not sent synchronously. + * */ int msg_respond(msg_q_t q, msg_t* msg); |