Hi, Please send the mail to the list, not to me.
On Sat, Mar 08, 2003 at 08:54:05AM -0600, David Wilson wrote: > Think I finally have this problem at least cornered. > > I compiled the kernel with: > * Preliminary USB device filesystem > * OHCI support Ok. Well, at least if you have a OHCI controller. > M USB Mass Storage support > M USB Printer support > M USB Human Interface Device (full HID) support > M USB Kodak DC-2xx support These are only necessary if you have such devices. > M USB Scanner support Ok. > Then installed the kernel > made a new initrd image > added /usr/local/lib/sane to /etc/ld.so.conf > ran depmod -a > ran LILO > > rebooted > > installed the scanner module (insmod scanner) > > At this point running /usr/local/bin/sane-find-scanner reports no scanner! And /proc/bus/usb/devices is empty? I have to admit that I have never seen this file empty. Only non-existent, if usbcore was not loaded or devusbfs nor mounted. > I unplugged the power to the scanner and plugged it back in. > > Then the kernel gives me a few complaints about a USB timeout Not good. Are the cables ok? Do you use an external hub? > /usr/local/bin/sane-find-scanner then reports finding a scanner and > the scanimage program works. > > I tried several of the flavors of the USB driver before one would finally > show the USB hub in the /proc/bus/usb/devices list. Well, if you use an OHCI host controller, you need usb-ohci. If you have UHCI you can try uhci or usb-uhci. > I wonder if there is something that can be done about having to cycle the > power to the scanner to get things to initialize properly? Which kernel version is this? With 2.4.20 I had similar problems with some scanners. However, the root hub initilized correctly. > I realize this is probably more of a USB issue than a SANE problem. > Hope this helps someone else. You could write to the linux-usb-users mailing list (se www.linux-usb.org). Bye, Henning
