snd_ctl_notify9
Send notification to user-space for a control change
Usage
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
Overview
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.