[sane-devel] Mustek BearPaw 2400 CU plus: now I'm totally confused (was: suddenly problems opening /dev/usbscanner0)

[Christoph Bier]

Hi!

Am Mon, 2 Jun 2003 15:58:33 +0200
schrieb Henning Meier-Geinitz <henning at meier-geinitz.de>::
 
> Maybe plugging in your (home) scanner confused the kernel. Do you
> get any messages from the USB system in /var/log/messages when you
> plug-in the scanner?

These are the messages I get, when I plug-out the 
(work) scanner and plug-in it again.

Jun  2 17:33:38 nb-pc057 kernel: usb.c: USB disconnect on device
00:11.2-1 address 2
Jun  2 17:33:53 nb-pc057 kernel: hub.c: new USB device 00:11.2-1,
assigned address 3
Jun  2 17:33:58 nb-pc057 kernel: usb_control/bulk_msg: timeout
Jun  2 17:33:58 nb-pc057 kernel: hub.c: new USB device 00:11.2-1,
assigned address 4
Jun  2 17:34:03 nb-pc057 kernel: usb_control/bulk_msg: timeout

> >    I'm totally confused now. Only unplugging (and 
> > plugging in again) makes the scanner stop working. 
> > Even after rebooting the system, there's an error 
> > opening /dev/usbscanner0.
> 
> Or your distribution found the scanner and used some hotplugging
> magic but failed. And that stops your scanner from beeing detected

Is there a possibility to turn such "hotplugging 
magic" off?

> again. But that's not easy to diagnose from remote.

Hm.

Greetings,

Christoph
-- 
Christoph Bier, Dipl.Oecotroph., Email: bier at wiz.uni-kassel.de
Universitaet Kassel, FG Oekologische Lebensmittelqualitaet und
Ernaehrungskultur \\ Postfach 12 52 \\ 37202 Witzenhausen
Tel.: +49 (0) 55 42 / 98 -17 21, Fax: -17 13