Talk:Usb-audio

From the ALSA wiki

Usb-audio does not work with the Lexicon Alpha device. Searching in google for help reveals people asking how to use this device in linux but no useful replies. When I plug in the USB cable under Ubuntu 9.04, I get this dmesg output:

[ 2417.028059] usb 3-3: new full speed USB device using ohci_hcd and address 4
[ 2417.241810] usb 3-3: config 1 has an invalid interface number: 4 but max is 3
[ 2417.241815] usb 3-3: config 1 has no interface number 3
[ 2417.252960] usb 3-3: configuration #1 chosen from 1 choice
[ 2418.171937] 4:1:1: cannot get freq at ep 0x1
[ 2418.185797] 4:1:2: cannot get freq at ep 0x1
[ 2418.202812] 4:2:1: cannot get freq at ep 0x82
[ 2418.215954] 4:2:2: cannot get freq at ep 0x82
[ 2418.219386] usbcore: registered new interface driver snd-usb-audio
[ 2419.441099] 4:2:1: cannot get freq at ep 0x82
[ 2419.715869] 4:1:1: cannot get freq at ep 0x1

$ lsusb Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 004: ID 1210:000a
Bus 003 Device 003: ID 04b8:0801 Seiko Epson Corp. Stylus CX5200/CX5400/CX6600
Bus 003 Device 002: ID 046d:c018 Logitech, Inc. Optical Wheel Mouse
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 002: ID 0518:0001 EzKEY Corp. USB to PS2 Adaptor v1.09
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub


The snd_usb modules are loaded:

$ lsmod | grep snd_usb snd_usb_audio 90528 0
snd_usb_lib 24320 1 snd_usb_audio
snd_hwdep 15108 1 snd_usb_audio
snd_rawmidi 29696 2 snd_usb_lib,snd_seq_midi
snd_pcm 83076 5 snd_usb_audio,snd_intel8x0,snd_pcsp,snd_ac97_codec,snd_pcm_oss
snd 62756 19
snd_usb_audio,snd_hwdep,snd_seq_oss,snd_rawmidi,snd_seq,snd_seq_device,snd_intel8x0,snd_pcsp,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer


Is there a special config for this device?