I have not been successful in getting this keyboard recognized on the usb bus, let alone by the usb-audio driver. I'm going to see if I can get it working via straight midi into my ymfpci-based guillemot maxisound fortissimo. But, can anyone see anything else I can try? I've tried to gather as much info as I could think of...maybe I'm just not understanding something basic ... Please help. My system is debian testing (sarge) with kernel 2.4.19 with preempt and lowlatency patches and the following usb options turned on: CONFIG_USB=m CONFIG_USB_DEVICEFS=y CONFIG_USB_UHCI_ALT=m CONFIG_USB_AUDIO=m lsusb returns nothing and there is nothing in /proc/bus/usb/devices ( which I guess says the same thing. ) I compiled and installed alsa-0.9.6 drivers, libs, utils and envy24control. the drivers were configured like this: ./configure --with-cards=ice1712,usb-audio --with-sequencer=yes --with-oss=no I have the following in modules.conf: #sound specific modules alias char-major-116 snd alias snd-card-0 snd-ice1712 alias snd-card-1 snd-usb-audio lsmod looks like this: Module Size Used by Not tainted input 3296 0 (autoclean) snd-seq 35088 0 (autoclean) snd-usb-audio 36992 0 (unused) usbcore 55968 0 [snd-usb-audio] snd-ice1712 35656 0 snd-pcm 54528 0 [snd-usb-audio snd-ice1712] snd-page-alloc 5392 0 [snd-pcm] snd-timer 13284 0 [snd-seq snd-pcm] snd-ac97-codec 34008 0 [snd-ice1712] snd-mpu401-uart 3088 0 [snd-ice1712] snd-rawmidi 11616 0 [snd-usb-audio snd-mpu401-uart] snd-seq-device 3652 0 [snd-seq snd-rawmidi] snd-ice17xx-ak4xxx 1344 0 [snd-ice1712] snd-cs8427 5188 0 [snd-ice1712] snd-ak4xxx-adda 3372 0 [snd-ice1712 snd-ice17xx-ak4xxx] snd-i2c 2092 0 [snd-ice1712 snd-cs8427] snd 23812 0 [snd-seq snd-usb-audio snd-ice1712 snd-pcm snd-timer snd-ac97-codec snd-mpu401-uart snd-rawmidi snd-seq-device snd-cs8427 snd-ak4xxx-adda snd-i2c] aconnect -i: client 0: 'System' [type=kernel] 0 'Timer ' 1 'Announce ' acconnect -o: <nothing> lspci: 00:00.0 Host bridge: Intel Corp. 440BX/ZX/DX - 82443BX/ZX/DX Host bridge (rev 03) 00:01.0 PCI bridge: Intel Corp. 440BX/ZX/DX - 82443BX/ZX/DX AGP bridge (rev 03) 00:07.0 ISA bridge: Intel Corp. 82371AB/EB/MB PIIX4 ISA (rev 02) 00:07.1 IDE interface: Intel Corp. 82371AB/EB/MB PIIX4 IDE (rev 01) 00:07.2 USB Controller: Intel Corp. 82371AB/EB/MB PIIX4 USB (rev 01) 00:07.3 Bridge: Intel Corp. 82371AB/EB/MB PIIX4 ACPI (rev 02) 00:0a.0 Multimedia audio controller: Yamaha Corporation YMF-744B [DS-1S Audio Controller] (rev 02) 00:0b.0 Multimedia audio controller: IC Ensemble Inc ICE1712 [Envy24] (rev 02) 00:0d.0 Ethernet controller: Accton Technology Corporation SMC2-1211TX (rev 10) 01:00.0 VGA compatible controller: 3Dfx Interactive, Inc. Voodoo 3 (rev 01) This box is a PII 400 on a AOpen AX6-BC motherboard. -Eric Rz.