SND_CTL_FIND_ID(9) Sound Devices SND_CTL_FIND_ID(9)NAMEsnd_ctl_find_id - find the control instance with the given id
SYNOPSIS
struct snd_kcontrol * snd_ctl_find_id(struct snd_card * card,
struct snd_ctl_elem_id * id);
ARGUMENTS
card
the card instance
id
the id to search
DESCRIPTION
Finds the control instance with the given id from the card.
The caller must down card->controls_rwsem before calling this function
(if the race condition can happen).
RETURN
The pointer of the instance if found, or NULL if not.
COPYRIGHTKernel Hackers Manual 3.11 November 2013 SND_CTL_FIND_ID(9)