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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.

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

May 2024 Kernel Hackers Manual 2.6.