On Wed, 10 Mar 2004 19:21, Chris Wilkinson wrote: > Hi there, > > I needed to plug in my scanner today, after getting a request for some > pictures to be scanned and emailed. Its an Epson 1260 USB model, and it > has run on this PC before (with Xsane, Iscan didn't work) under Mandrake > 9.1 (I've upgraded to 9.2). When I switch the scanner on, and plug in > the USB cable, then look at 'USB Devices', no device is shown at all. > > dmesg and /var/log/messages do not appear to show any USB related errors > on booting. 'modprobe'ing for 'usbcore' and 'scanner' work fine (they're > already loaded). Trying to run Xsane and/or Iscan (in case it decides to > work!) brings a message 'Could not send command to scanner'. Running the > 'sane-find-scanner' command as root finds nothing. > > I'm thinking that the software is OK, but that not being able to see the > USB device ID and product ID over the USB bus is not looking good on the > hardware side of things...is there anything I can do to test whether my > USB controller is bung? Oh, USB is enabled from the BIOS in case you > thought it may not have been... > > Its a Via VT8235 based USB 2.0 controller, on an Asrock K7VM4 mobo, and > there are 3 USB hubs for a total of 6 USB 1.x/2.0 ports, none of which > allow me to see the device on the bus...
watch cat /proc/bus/usb/devices plug and unplug the scanner a few times and see if the output of /proc/bus/usb/devices changes
