On Fri, 2004-06-04 at 02:59, Steve Bangert wrote:
> Roland,
>
> You might want to try 2.4.27-pre2 or 2.4.26 plus this patch:
correction:2.4.27-pre1
>
> http://marc.theaimsgroup.com/?l=linux-usb-devel&m=108234665207420&w=2
>
> Steve
>
>
>
>
> On Wed, 2004-06-02 at 10:14, QROOF wrote:
> > Hi all,
> > I have some problems with printing via USB.
> >
> > Whenever I cancel the transfer through a USB printer port (printer.o/usblp.o) this
> > device (/dev/usb/lp0 in my case) gets
> > locked. This behaviour is easily reproducable:
> > I send something to the printer, like # cat myfile.ps > /dev/usb/lp0
> > Then, the printer starts receiving data and starts printing. When I kill this cat
> > process, the printer still prints what
> > it has received so far, but does not switch back to online state (flashing LED
> > indicates still receiving data). When I
> > now cat something else to /dev/usb/lp0, this second cat process hangs,
> > i.e. it can't be killed (not even with kill -KILL), until I reconnect the USB
> > cable or power off/on the printer. In this
> > case lsusb shows me that /dev/usb/lp0 is now assigned to the next higher address
> > number on the same bus, and things run
> > as before.
> >
> > I'm running Gentoo Linux and the printer is a HP LaserJet 2200DTN. It happens with
> > both, the gentoo 2.4.25 and 2.6.5
> > kernels, with OHCI and UHCI host controlers, and with any types of
> > spoolers/filters. It looks to me like a problem in
> > printer.o/usblp.o , because the hanging cat process is obviously in kernel mode,
> > waiting for the USB link to be reset.
> >
> > So I would be very glad if someone had a workaround for that.
> >
> > Best
> > Roland
> >
> >
> >
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