2 May
2015
2 May
'15
2:37 p.m.
On Sat, 2 May 2015 14:20:04 +0200, hollundertee(a)gmx.net wrote:
It would be sufficient if the default interface was
properly set on
boot or resume. It would probably not hurt if it was set whenever a usb
audio device gets plugged in. I'm not quite sure which mechanism allows
me to do that. ALSA alone? Udev?
Default by default is hw:0 and you can ensure that hw:0 is always
reserved for the same device.
$ cat /etc/modprobe.d/alsa-base.conf
# ALSA module ordering
options snd slots=snd_hdspm,snd_ice1712,snd_ice1712
You could add snd_usb_audio as first device, so hw:0 would be reserved
for an USB device, even if it's not connected. For me hw:0 is reserved
for a RME card and hw:1 and hw:2 are reserved for Envy24 cards, even if
I e.g. remove the Envy24 driver, an additional connected device, e.g. an
USB device, becomes hw:3 and not hw:1.
Regards,
Ralf