other versions
- jessie 3.16.56-1+deb8u1
| SND_CTL_ACTIVATE_ID(9) | Sound Devices | SND_CTL_ACTIVATE_ID(9) |
NAME¶
snd_ctl_activate_id - activate/inactivate the control of the given idSYNOPSIS¶
int
snd_ctl_activate_id(struct snd_card * card,
struct snd_ctl_elem_id * id,
int active);
ARGUMENTS¶
cardthe 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.RETURN¶
0 if unchanged, 1 if changed, or a negative error code on failure.COPYRIGHT¶
| May 2018 | Kernel Hackers Manual 3.16 |