SND_CTL_FIND_NUMID(9) Sound Devices SND_CTL_FIND_NUMID(9)
NAME
snd_ctl_find_numid - find the control instance with the given number-id
SYNOPSIS
struct snd_kcontrol * snd_ctl_find_numid(struct snd_card * card, unsigned int numid);
ARGUMENTS
card
the card instance
numid
the number-id to search
DESCRIPTION
Finds the control instance with the given number-id from the card.
Returns the pointer of the instance if found, or NULL if not.
The caller must down card->controls_rwsem before calling this function (if the race condition can happen).
COPYRIGHT
Kernel Hackers Manual 2.6. July 2010 SND_CTL_FIND_NUMID(9)
