On Tue, 11 Nov 2008, Takashi Iwai wrote: > > Almost all devices can be managed with udev rules, that is where the > > system is designed for, there are also alsa rules in there, if they > > don't work what is wrong then? is it an alsa issue, or udev, what are > > the dependencies when alsa uses hardware. How are the /dev/snd/* devices > > used and what is the /proc/asound/* for ? > > The card index mechanism in ALSA was introduced much before udev > was born. It's just a legacy mechanism, but it's hard to kill without > breaking the running system, unfortunately. Note that you can identify your card via the text identification (check /proc/asound/cards to get it in []). You can set this identification in the module insert time and use for example 'hw:Intel' in your apps without bothering with indexes. The missing part is the modification of this text identification using sysfs at runtime for udev. Some time ago, I was trying to add this setup to /sys/class/sound, but the sysfs core code was not prepared for this change. I'll try to check the situation again. Jaroslav ----- Jaroslav Kysela <perex@xxxxxxxx> Linux Kernel Sound Maintainer ALSA Project, Red Hat, Inc. _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
