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snd_ctl_find_id
Langue: en
Version: June 2009 (debian - 07/07/09)
Section: 9 (Appels noyau Linux)
NAME
snd_ctl_find_id - find the control instance with the given idSYNOPSIS
- 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.
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).
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