From mboxrd@z Thu Jan  1 00:00:00 1970
From: =?UTF-8?B?QW5kcsOp?= Roth <lynx@netlabs.org>
Subject: USB Printer does not work
Date: Fri, 2 Jan 2009 17:50:29 +0100
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Hello List,

I'm using kvm-82 and I'm trying to attach a HP 1200 per USB to my guest=
 system (Debian/lenny, 2.6.26-1-amd64). This works so far, the usblp mo=
dule is loaded and I get a /dev/usb/lp0. I can print text/plain by catt=
ing text to the device.=20

But using CUPS, the device is not detected due to a failing ioctl:

   # strace /usr/lib/cups/backend/usb 2>&1 | grep error\\\|lp0 -i
   ...
   open("/dev/usb/lp0", O_RDWR|O_EXCL)     =3D 3
   ioctl(3, SNDCTL_DSP_SYNC, 0x7fff90018760) =3D -1 EIO (Input/output e=
rror)

Specifying the device manually does not work either. On the host system
this works without problems. The CPU is an Intel Core2 Quad Q9300.

How can I further debug this ?

Thanks,

 andr=C3=A9