snd_ctl_find_numid

Langue: en

Autres versions - même langue

Version: June 2009 (debian - 07/07/09)

Section: 9 (Appels noyau Linux)

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).