Thanks for the help, guys. I still can't get it to work. :( Here's more info, based on your suggestions. yew:~# cat /proc/bus/usb/devices T: Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 2 Spd=12 MxCh= 0 D: Ver= 1.00 Cls=ff(vend.) Sub=00 Prot=ff MxPS= 8 #Cfgs= 1 P: Vendor=0582 ProdID=0009 Rev= 1.00 C:* #Ifs= 3 Cfg#= 1 Atr=80 MxPwr=120mA I: If#= 0 Alt= 0 #EPs= 0 Cls=ff(vend.) Sub=ff Prot=00 Driver=(none) I: If#= 1 Alt= 0 #EPs= 0 Cls=ff(vend.) Sub=ff Prot=00 Driver=(none) I: If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=00 Driver=snd-usb-audio E: Ad=01(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=81(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms I: If#= 2 Alt= 1 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=00 Driver=snd-usb-audio E: Ad=01(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=81(I) Atr=03(Int.) MxPS= 64 Ivl=1ms yew:~# lsmod | grep usb snd_usb_audio 65120 0 snd_rawmidi 23204 2 snd_mpu401_uart,snd_usb_audio snd_pcm 85384 3 snd_intel8x0,snd_usb_audio,snd_pcm_oss snd 50660 13 snd_seq_oss,snd_seq_midi_event,snd_seq,snd_intel8x0,snd_ac97_codec,snd_mpu401_uart,snd_usb_audio,snd_rawmidi,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer usbhid 28864 0 usbcore 104164 5 snd_usb_audio,usbhid,ohci_hcd yew:~# yew:~# cat /proc/modules | grep snd_seq_midi snd_seq_midi_event 7552 1 snd_seq_oss, Live 0xded53000 snd_seq 46480 4 snd_seq_oss,snd_seq_midi_event, Live 0xdedce000 snd 50660 13 snd_seq_oss,snd_seq_midi_event,snd_seq,snd_intel8x0,snd_ac97_codec,snd_mpu401_uart,snd_usb_audio,snd_rawmidi,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer, Live 0xded04000 yew:~# Clemens Ladisch wrote: > Erik Thorsson wrote: > >>I recently switched from Red Hat FC1 to Debian Sarge, kernel 2.6.8-11, >>and am having trouble getting my MIDI interface -- USB Edirol UM-1S -- >>working. >> >>yew:~# pmidi -list >> Port Client name Port name > > > Is the snd-usb-audio module loaded, and is it attached to the device > (see /proc/bus/usb/devices)? Is the snd-seq-midi module loaded? > > > Clemens > >