usb audio detection problem
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After a week of fighting with my new M-Audio USB Quattro device I have solved a problem with our hardwared detection.
I used the standard alsa configuration lines in/etc/modules.conf, i.e. alias sound-slot-0 snd-usb-audio
above snd-usb-audio snd-pcm-oss
but when restarting alsa, the OSS driver was loading first (module name 'audio'), and then the alsa driver was unable to access the PCM stream. By adding 'audio' to/etc/hotplug/blacklist, everything worked fine. Is there some way to fix this permanently?
Is everyone else with usb-based audio currently forced to use OSS when Mandrake's default should be alsa?
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both audio and snd-usb-audio modules have exactly the same matching
criteria (in your case) and "audio" appears first in/lib/modules/uname -r/modules.usbmap so it wins.I guess so far the ony "official" way is to blacklist it.
If having two modules with the same matching ids is expected, what is normal way to prefer one of them? The problem currently is system-wide usbmap is consulted first so there is actually no way to override it.
This is under 2.4.21.
TIA
-andrey
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