[cups.bugs] [MOD] STR #3978: USB backend crashes from time to time

Till Kamppeter till.kamppeter at gmail.com
Fri Nov 11 12:19:06 PST 2011


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[STR New]

I have applied this patch and the patch of STR #3965 to the package in
Ubuntu Oneiric now and asked the people suffering the following Ubuntu
bugs for testing:

https://bugs.launchpad.net/ubuntu/+source/cups/+bug/887094
  usb printer backend crashes

https://bugs.launchpad.net/ubuntu/+source/cups/+bug/872483
  laser printer only prints first job correct

https://bugs.launchpad.net/ubuntu/+source/cups/+bug/883169
  Brother MFC-8840D usb printer not detected

https://bugs.launchpad.net/ubuntu/+source/cups/+bug/793244
  After suspend/hibernate usb printer backend repeatedly crashes

https://bugs.launchpad.net/ubuntu/+source/cups/+bug/564917
  Ubuntu 10.04 does not recognize local printer connected via
  USB/parallel adapter cable

For the first three I got answers and they are definitely fixed by the two
patches. On the other two I am still waiting for an answer but they are
most probably also fixed.

Together with the USB fix on the Linux kernel (STR #3884) it looks like
that all known problems of libusb-based USB printing (after deprecation of
the "usblp" kernel module) are solved together with these two patches on
the libusb-based "usb" CUPS backend. So I highly recommend the inclusion
of the two patches in the upstream repository of CUPS, for both CUPS 1.5.x
and 1.6.x.

Link: http://www.cups.org/str.php?L3978
Version: 1.5.0





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