because i got no answer on linux-usb-user i try here:
* the device: ID 041e:3020 Creative Technology, Ltd :3020 is a "Creative USB Sound Blaster Audigy 2 NX"
(btw I already sent this and some other IDs to Vojtech Pavlik <[EMAIL PROTECTED]>, maintainer of usb.ids, so don't run and add it, i think he will do when he hast time to)
* software: lsusb (usbutils) 0.11 kernel: 2.6.5-rc2-mm2 (also tried with gentoo-dev-sources 2.6.0 up to 2.6.4-r2 and some prior 2.6.x versions of mm-sources) alsa 1.0.3
* outputs: -dmesg:
usb 1-2: new full speed USB device using address 3 drivers/usb/core/usb.c: registered new driver snd-usb-audio drivers/usb/core/usb.c: registered new driver audio drivers/usb/class/audio.c: v1.0.0:USB Audio Class driver
-lsusb: the output of lsusb -v is a little long (about 40KB), that's why i don't include it here. it can be found on http://nix.bockb.de/lsusb-v-s1.3.output.txt ( http://nix.bockb.de/ is my homepage where i am collecting information which may help for getting the devices up and running)
* the problem: i sometimes got the message "Config 0 descriptor too long, truncating"
lsusb -v -s 1:3 shows following error-msg: (these are only the
last few lines, full above)
descriptor length past end: 09 05 81 01 03 00
Language IDs: (length=4)
0409 English(US)As you can see the descriptor gets truncated and i think this could be the source for problems with alsa and others. alsamixer can't change the volume of all channels, maybe doesn't show all correct, ...
i think it could be sufficient to increase the buffer sizes for the descriptors in linux-usb/kernel. if you need more information than provided please let me know.
hope to hear from you, Benjamin
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