[LAU] ALSA +udev + Identify two identical audio devices

Hi all, I’m trying to configure a pc with puredyne 9.11 and 2 RME HDSPM soundcards[1]. I manage to get sound perfectly, and I also managed to merge the two sound cards into one using .asoundrc. My problem is that the cards are identical and at every boot they get a random order. I was trying to follow [2] to try to give them a name based on the hardware location of the pci cards. I created a file which I placed in /etc/udev/rules.d/85-wfs-script.rules with the following: SUBSYSTEM!="sound", GOTO="wfs_pci_cards" ACTION!="add", GOTO="wfs_pci_cards" DEVPATH=="/devices/pci0000:00/0000:00:14.4/0000:02:0e.0/sound/card?", ATTR{id}="HDSPM_1" DEVPATH=="/devices/pci0000:00/0000:00:14.4/0000:02:09.0/sound/card?", ATTR{id}="HDSPM_2" LABEL="wfs_pci_cards" Then when I reboot or reload the driver I get one of them with the correct name and the other one with “default” /proc/asound/cards 0 [default ]: HDSPM - HDSPM MADI RME HDSPM MADI at 0xfdce0000, irq 16 1 [HDSPM_1 ]: HDSPM - HDSPM MADI RME HDSPM MADI at 0xfdcd0000, irq 17 Which one gets the “default” name is random and changes every time I boot. I tried changing the number 85 to all sorts of numbers, to change the order in which the rule is run, but it doesn’t really make a difference. Running udevd --debug and reloading the driver reports : 1323357358.505334 [3088] udev_rules_apply_to_event: ATTR '/sys/devices/pci0000:00/0000:00:14.4/0000:02:09.0/sound/card0/id' writing 'HDSPM_2' /etc/udev/rules.d/90-wfs-pci-cards.rules:5 1323357358.505393 [3088] udev_rules_apply_to_event: error opening ATTR{/sys/devices/pci0000:00/0000:00:14.4/0000:02:09.0/sound/card0/id} for writing: No such file or directory Btw, the file is there, and doing "more /sys/devices/pci0000:00/0000:00:14.4/0000:02:09.0/sound/card0/id” yields “default” or “default_1”. How can I stop the “default” name overriding the names that I set in the .rules file ? Any help appreciated !!!! best regards, -- Miguel Negrão // ZLB http://www.friendlyvirus.org/artists/zlb/ [1] http://www.mjmwired.net/kernel/Documentation/sound/alsa/hdspm.txt [2] http://alsa.opensrc.org/Udev#Identify_two_identical_audio_devices -- Miguel Negrão // ZLB http://www.friendlyvirus.org/artists/zlb/