# Re: [linux-usb] Scanner problems...

From: khk@khk.net
Date: Sat Jun 24 2000 - 13:39:15 PDT

- Next message: Henning Meier-Geinitz: "Re: Adding interface column to website and .desc?"
  - Previous message: Henning Meier-Geinitz: "Re: Towards release 1.0.3?"
  - Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

  Nope, no problem with the scanner. It turned out that one of the
  other scanner backends was hogging the /dev/usbscanner device, and
  that my software never actually go to the device.

  WORKAROUND:

  When you experience the "usb_control/bulk_msg: timeout" messages
  try to disable all but the backend you want to use in the dll.conf
  file.

  This worked for me.

  Karl Heinz

  On Sat, Jun 24, 2000 at 02:30:17PM -0400, khk@khk.net wrote:
  > I just noticed that somewhere between 2.4.0test1-ac10 and 2.4.0test2
  > the scanner support was broken. ASFIK the scanner.c module was not
  > changed, so I suspect that something in the bulk transfer is not
  > working anymore.
  >
  > In my case (EPSON Perfection610) it fails every time. I can not get
  > a communication with the scanner established.
  >
  > Karl Heinz
  >
  > On Sat, Jun 17, 2000 at 07:18:42PM -0700, John Gordon wrote:
  > > Hi all,
  > >
  > > Has anybody else noticed problems when using a USB scanner? I have an HP 5200C
  > > set up using the latest versions of SANE, the HP backend and XSANE. Most of the
  > > time it is OK, but every now and again a scan stops mid way and after a fairly
  > > long timeout (maybe 30 seconds - I'll try to time it next time ;-), XSANE tells
  > > me there was an I/O error. Restarting the scan works (no need to reset anything
  > > at the hardware level).
  > >
  > > dmesg is revealing the following:
  > >
  > > usb_control/bulk_msg: timeout
  > > scanner.c: read_scanner(0): NAK received
  > >
  > > Oh, I'm using 2.2.14 and the latest backport too so I may not be 100% up to
  > > date. Have there been any recent changes that could solve this? My HCD is UHCI
  > > and U'm using CONFIG_USB_UHCI_ALT compiled into the kernel.
  > >
  > > I don't have much time to explore at the moment, but if nobody else is seeing
  > > it maybe I can spend some time on it in the next few weeks (I have another OS
  > > to release this week ;-).
  > >
  > > TTFN,
  > >
  > > John...
  > >
  > > __________________________________________________
  > > Do You Yahoo!?
  > > Send instant messages with Yahoo! Messenger.
  > > http://im.yahoo.com/
  > >
  > > ---------------------------------------------------------------------
  > > To unsubscribe, e-mail: linux-usb-unsubscribe@suse.com
  > > For additional commands, e-mail: linux-usb-help@suse.com

  - application/pgp-signature attachment: stored

      --
      Source code, list archive, and docs: http://www.mostang.com/sane/
      To unsubscribe: echo unsubscribe sane-devel | mail majordomo@mostang.com

  - Next message: Henning Meier-Geinitz: "Re: Adding interface column to website and .desc?"
  - Previous message: Henning Meier-Geinitz: "Re: Towards release 1.0.3?"
  - Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

  This archive was generated by hypermail 2b29 : Sat Jun 24 2000 - 13:31:51 PDT