20 Mar
2015
20 Mar
'15
3:07 p.m.
Damien Zammit wrote:
On 21/03/15 00:25, Takashi Sakamoto wrote:
Any userspace applications can destroy packet streaming which kernel driver starts, by transaction to streaming-related register.
In current implementation of ALSA firewire stack and Linux FireWire subsystem, we cannot avoid this.
Does that mean the mixer control will need root permissions to execute in userspace because the /dev/fwX node is usually owned by root?
/dev/fw* of audio devices typically get a different group to allow FFADO to run. Whatever software implements these mixer controls (whether it ends up called FFADO or not) would run with the same permissions.
Regards, Clemens