table of contents
| SND_CTL_NOTIFY(9) | Control/Mixer API | SND_CTL_NOTIFY(9) |
NAME¶
snd_ctl_notify - Send notification to user-space for a control change
SYNOPSIS¶
void snd_ctl_notify(struct snd_card * card, unsigned int mask, struct snd_ctl_elem_id * id);
ARGUMENTS¶
card
the card to send notification
mask
the event mask, SNDRV_CTL_EVENT_*
id
the ctl element id to send notification
DESCRIPTION¶
This function adds an event record with the given id and mask, appends to the list and wakes up the user-space for notification. This can be called in the atomic context.
COPYRIGHT¶
| May 2024 | Kernel Hackers Manual 2.6. |