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USBD_Audio_OS_PlaybackReqPend
USBD_Audio_OS_PlaybackReqPend
- Former user (Deleted)
- WES Admin
Owned by Former user (Deleted)
Description
Pend on a request from the playback's task queue.
Files
usbd_audio_os.h / usbd_audio_os.c
Prototype
void *USBD_Audio_OS_PlaybackReqPend (USBD_ERR *p_err);
Arguments
p_err
Pointer to variable that will receive the return error code from this function.
USBD_ERR_NONE
USBD_ERR_OS_TIMEOUT
USBD_ERR_OS_ABORT
USBD_ERR_OS_FAIL
Returned Value
Pointer to playback request, if NO error(s).
Null pointer, otherwise.
Callers
Audio Class.
Implementation Guidelines
Typical implementation will consist in pending on a queue.
p_err argument should be assigned as described in following table.
Table - Error Code Assignment for Pending on a Playback Request
| Operation result | Error code to assign |
|---|---|
| No error | USBD_ERR_NONE |
| Pend timeout | USBD_ERR_OS_TIMEOUT |
| Pend aborted | USBD_ERR_OS_ABORT |
| Pend failed for any other reason | USBD_ERR_OS_FAIL |