| SND_CTL_FIND_NUMID(9) | Control/Mixer API | 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.
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.
COPYRIGHT¶
| June 2024 | Kernel Hackers Manual 3.10 |