[sane-devel] usb_control/bulk_msg: timeout

Peter Kirchgessner peter@kirchgessner.net
Thu, 02 Jan 2003 20:39:59 +0100


seems really to be a problem with the USB-connection. At that point I 
can't help further.



Bill Moseley schrieb:
> On Thu, 2 Jan 2003, Peter Kirchgessner wrote:
>>your configuration is ok. Otherwise scanimage would not find the 
>>scanner. But you can try to access the scanner by libusb. Insert below 
>>the line scsi HP
>># HP ScanJet 4100C
>>usb 0x03f0 0x0101
> Ok I tried that:
>    $ cat /etc/sane.d/hp.conf 
>    scsi HP
>    usb 0x03f0 0x0101
>    #/dev/scanner
>    # uncomment this if you're using a usb scanner
>    /dev/usb/scanner0
>    option connect-device
> Still same problem, and I still see the "usb_control/bulk_msg: timeout"
> messages and xsane always fails with an I/O error.
> "xscanimage hp" is having a few problems, too.  If I try to do a preview
> the preview image looks like it's missing a color and I get an I/O error
> toward the end of the preview pass.  I can select a small image area and
> get a real scan and that looks fine, though.
> I decided to reboot and I get about five or six "usb_control/bulk_msg:
> timeout" messages during the boot process (the boot process pauses for
> each message).
> Then before sane will detect my scanner I have to remove/replace the USB
> cable to the scanner one time.  That is, it's not correctly loaded at boot
> for some reason.
> I'm starting to suspect the scanner.  I guess this might turn into one of
> those "What's a good scanner for Linux?" questions.
> As a newbie it's hard to debug this stuff -- especially with so many
> parts: USB, hotplug and sane.  I don't really grasp how all the parts fit
> together.
> BTW -- I assume this is known.  These are all generated each time I start
> up the scanner program (10:32:2* is the time, if not obvious).
> $ fgrep '10:32:2' /var/log/syslog | grep open_scanner | wc -l
>     465
> Thanks,

Peter Kirchgessner