Short version: I've rearranged the kernel with all the USB stuff as modules and added usbdevfs to the mix. Still doesn't work and I'm strongly suspecting that the problem is with the USB-to-SCSI emulation for mass storage devices, not with USB itself. Long version (system responses to insmod are from syslog): --- # insmod usbcore kernel: usb.c: registered new driver usbdevfs kernel: usb.c: registered new driver hub # insmod usb-uhci kernel: usb-uhci.c: $Revision: 1.275 $ time 15:12:14 Jul 21 2002 kernel: usb-uhci.c: High bandwidth mode enabled kernel: PCI: Found IRQ 9 for device 00:04.3 kernel: PCI: Sharing IRQ 9 with 00:04.2 kernel: usb-uhci.c: USB UHCI at I/O 0xd800, IRQ 9 kernel: usb-uhci.c: Detected 2 ports kernel: usb.c: new USB bus registered, assigned bus number 1 kernel: hub.c: USB hub found kernel: hub.c: 2 ports detected kernel: PCI: Found IRQ 9 for device 00:04.2 kernel: PCI: Sharing IRQ 9 with 00:04.3 kernel: usb-uhci.c: USB UHCI at I/O 0xd400, IRQ 9 kernel: usb-uhci.c: Detected 2 ports kernel: usb.c: new USB bus registered, assigned bus number 2 kernel: hub.c: USB hub found kernel: hub.c: 2 ports detected kernel: usb-uhci.c: v1.275:USB Universal Host Controller Interface driver kernel: hub.c: USB new device connect on bus2/2, assigned device number 2 kernel: usb.c: USB device 2 (vend/prod 0x5e3/0x700) is not claimed by any active driver. # insmod usb-storage tcplogd: port 9000 connection attempt from pchan.sherohman.org [208.38.79.207] kernel: Initializing USB Mass Storage driver... kernel: usb.c: registered new driver usb-storage kernel: usb-storage: act_altsettting is 0 kernel: usb-storage: id_index calculated to be: 59 kernel: usb-storage: Array length appears to be: 61 kernel: usb-storage: USB Mass Storage device detected kernel: usb-storage: Endpoints: In: 0xc2e26bc0 Out: 0xc2e26bd4 Int: 0x00000000 (Period 0) kernel: usb-storage: New GUID 05e307000000000000000000 kernel: usb-uhci.c: interrupt, status 2, frame# 1684 kernel: usb-storage: GetMaxLUN command result is 0, data is 206 kernel: usb-storage: Transport: Bulk kernel: usb-storage: Protocol: Transparent SCSI kernel: usb-storage: *** thread sleeping. kernel: scsi1 : SCSI emulation for USB Mass Storage devices kernel: usb-storage: queuecommand() called kernel: usb-storage: *** thread awakened. kernel: usb-storage: Command INQUIRY (6 bytes) kernel: usb-storage: 12 00 00 00 ff 00 00 00 65 89 19 c0 kernel: usb-storage: Bulk command S 0x43425355 T 0xa Trg 0 LUN 0 L 255 F 128 CL 6 kernel: usb-storage: Bulk command transfer result=0 kernel: usb-storage: usb_stor_transfer_partial(): xfer 255 bytes kernel: usb-storage: usb_stor_bulk_msg() returned -84 xferred 0/255 kernel: usb-storage: usb_stor_transfer_partial(): unknown error kernel: usb-storage: Bulk data transfer result 0x2 kernel: usb-storage: Attempting to get CSW... kernel: usb-storage: Bulk status result = -84 kernel: usb-storage: Bulk reset requested kernel: usb-storage: Bulk soft reset failed -110 kernel: usb-storage: -- transport indicates transport failure kernel: usb-storage: Fixing INQUIRY data to show SCSI rev 2 kernel: usb-storage: scsi cmd done, result=0x70000 kernel: usb-storage: *** thread sleeping. kernel: usb-storage: queuecommand() called kernel: usb-storage: *** thread awakened. kernel: usb-storage: Command INQUIRY (6 bytes) kernel: usb-storage: 12 00 00 00 ff 00 00 00 65 89 19 c0 kernel: usb-storage: Bulk command S 0x43425355 T 0xb Trg 0 LUN 0 L 255 F 128 CL 6 kernel: usb-storage: Bulk command transfer result=-110 kernel: usb-storage: Bulk reset requested kernel: usb-storage: Bulk soft reset failed -110 kernel: usb-storage: -- transport indicates transport failure kernel: usb-storage: Fixing INQUIRY data to show SCSI rev 2 kernel: usb-storage: scsi cmd done, result=0x70000 kernel: usb-storage: *** thread sleeping. kernel: usb-storage: queuecommand() called kernel: usb-storage: *** thread awakened. kernel: usb-storage: Command INQUIRY (6 bytes) kernel: usb-storage: 12 00 00 00 ff 00 00 00 65 89 19 c0 kernel: usb-storage: Bulk command S 0x43425355 T 0xc Trg 0 LUN 0 L 255 F 128 CL 6 kernel: usb-storage: Bulk command transfer result=-110 kernel: usb-storage: Bulk reset requested kernel: usb-storage: Bulk soft reset failed -110 kernel: usb-storage: -- transport indicates transport failure kernel: usb-storage: Fixing INQUIRY data to show SCSI rev 2 kernel: usb-storage: scsi cmd done, result=0x70000 kernel: usb-storage: *** thread sleeping. kernel: usb-storage: queuecommand() called kernel: usb-storage: *** thread awakened. kernel: usb-storage: Bad target number (1/0) kernel: usb-storage: *** thread sleeping. <repeat lst 4 lines for target numbers (2/0) through (7/0)> kernel: WARNING: USB Mass Storage data integrity not assured kernel: USB Mass Storage device found at 2 kernel: USB Mass Storage support registered. --- Now that usbdevfs is in place, usbview shows two USB UHCI Root Hub devices, one with a usb-storage device attached. The details on the usb-storage are: --- usb-storage Speed: 12Mb/s (full) USB Version: 1.10 Device Class: 00(>ifc ) Device Subclass: 00 Device Protocol: 00 Maximum Default Endpoint Size: 8 Number of Configurations: 1 Vendor Id: 05e3 Product Id: 0700 Revision Number: 1.13 Config Number: 1 Number of Interfaces: 1 Attributes: 80 MaxPower Needed: 96mA Interface Number: 0 Name: usb-storage Alternate Number: 0 Class: 08(stor.) Sub Class: 6 Protocol: 50 Number of Endpoints: 2 Endpoint Address: 81 Direction: in Attribute: 2 Type: Bulk Max Packet Size: 64 Interval: 0ms Endpoint Address: 02 Direction: out Attribute: 2 Type: Bulk Max Packet Size: 64 Interval: 0ms --- I also tried building an ide-scsi module and adding that, just to be sure, but it had no effect on the USB situation. /proc/scsi/scsi still only shows the real scsi bus and not the CF reader, although /proc/scsi/usb-storage-0/ is still there. -- When we reduce our own liberties to stop terrorism, the terrorists have already won. - reverius Innocence is no protection when governments go bad. - Tom Swiss