snd_hwdep_new — create a new hwdep instance
int snd_hwdep_new
(struct snd_card * card, char * id, int device, struct snd_hwdep ** rhwdep);
the card instance
the id string
the device index (zero-based)
the pointer to store the new hwdep instance
Creates a new hwdep instance with the given index on the card. The callbacks (hwdep->ops) must be set on the returned instance after this call manually by the caller.
Returns zero if successful, or a negative error code on failure.