snd_ctl_find_numid - find the control instance with the given number-id
2. SYNOPSIS ▲
struct snd_kcontrol * snd_ctl_find_numid(struct snd_card * card , unsigned int numid );
3. ARGUMENTS ▲
the card instance
the number-id to search
4. 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).
5. RETURN ▲
The pointer of the instance if found, or NULL if not.
6. COPYRIGHT ▲