HDA-Intel: device controlC0 creation question
Mark C. Allman
mcallman at allmanpc.com
Tue Sep 8 16:50:08 UTC 2009
System: Dell XPS 1710
Sound H/W: HDA-Intel
Current kernel: 2.6.29.6-217.2.16.fc11.i586
In the /dev/snd directory I see:
hwC0D0 hwC0D1 pcmC0D0c pcmC0D0p pcmC0D1p timer
The controlC0 device is created in /dev, not in /dev/snd, and the first
rule in /etc/udev/rules.d/90-alsa.rules fails.
In the file /etc/udev/rules.d/40-alsa.rules I see the line:
KERNEL=="controlC[1-9]*", NAME="snd/%k", MODE="0666"
If I change [1-9] to [0-9] I see the controlC0 device created
in /dev/snd, and the alsa rules run just fine. I see in /dev/snd:
controlC0 hwC0D0 hwC0D1 pcmC0D0c pcmC0D0p pcmC0D1p timer
The controlC0 should be in /dev/snd, correct?
Also, none of the sound devices like /dev/audio, dev/dsp, /dev/mixer,
etc., are created. Now that I have the controlC0 device being created
in (what I hope is) the correct place, where is the creation of the /dev
devices like dsp and audio controlled? I see lines like
KERNEL=="audio0", SYMLINK+="audio", MODE="0666"
in 40-alsa.rules but no /dev/audio (or audio0) device ends up being
created.
Any suggestions would be helpful.
tia,
-- Mark C. Allman, PMP
-- Allman Professional Consulting, Inc.
-- www.allmanpc.com, 617-947-4263
-- Twitter: allmanpc
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