Use the sioctl_open(3) OpenBSD API to access vol
Starting with OpenBSD 6.7 regular users cannot access raw audio devices anymore, for improved security. Instead use the sioctl_open(3) API to access and manipulate audio controls exposed by sndiod(8). On the first call a permanent connection is established with the running sndiod daemon, and call-back functions are registered which are triggered when audio controls are changed (e.g., a USB headset is attached) or when the volume is modified. On subsequent calls we poll for changes; if there are no volume changes this costs virtually nothing. Joint work with Alexandre Ratchov
This commit is contained in:

committed by
Aaron Marcher

parent
aaf279f6dd
commit
9ac721c23f
Reference in New Issue
Block a user