Name
snd_ctl_activate_id —
activate/inactivate the control of the given id
Synopsis
int snd_ctl_activate_id ( | struct snd_card * card, |
| | struct snd_ctl_elem_id * id, |
| | int active); |
Arguments
card
the card instance
id
the control id to activate/inactivate
active
non-zero to activate
Description
Finds the control instance with the given id, and activate or
inactivate the control together with notification, if changed.
Returns 0 if unchanged, 1 if changed, or a negative error code on failure.