Function USBAudioWaitDone

USBAudioWaitDone waits until a pending playback or recording transaction completes:

int USBAudioWaitDone(int AudioID, void * * Data, int Timeout);

Parameters

AudioID

Audio ID value previously returned by function USBAudioGetInfo.

Data

Pointer to a pointer which will receive the address of the application's data buffer which has completed. This parameter may be NULL.

Timeout

Maximum number of milliseconds to wait.

return value

For playback transactions, this function returns RTU_SUCCESS. For recording, the number of bytes recorded in **Data is returned. On error, a negative error code is returned. If no transactions are pending on the specified audio function, this function returns RTU_NOT_AVAIL immediately.

USBAudioWaitDone must be called once for each transaction started with USBAudioPlay or USBAudioRecord. Internally, USBAudioRecord calls RTUIOWaitTimed.

Function USBAudioRecord

Down Function USBAudioTranslate