On Sun, 8 May 2011, Jan Stary wrote:
Is it OK for an uaudio(4) device to have 0 mixer controls? I can control the respective inputs/outputs with the device's (hardware) knobs, but having 0 (software) mixerctl variables still seems a bit strange. Is it possible that the device really has 0 controls to expose via USB audio (and uaudio just correctly reports that), or is this a sign that the dovice is not fully supported (or possibly not class-compliant)?
Accidentaly, I am recording at this very moment from a firewire audio interface (using another OS) and the device does not provide any mixer controls in software. Only the hardware buttons on the box. This fact is confirmed by the docs of the device.
So, I would not be surprised that this is possible with USB audio devices too.
Regards, David