[sane-devel] usb_control/bulk_msg: timeout
Thu, 2 Jan 2003 10:55:56 -0800 (PST)
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
usb 0x03f0 0x0101
# uncomment this if you're using a usb scanner
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
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
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
Bill Moseley firstname.lastname@example.org