https://bugzilla.novell.com/show_bug.cgi?id=751712
https://bugzilla.novell.com/show_bug.cgi?id=751712#c11
--- Comment #11 from Johannes Meixner 2012-03-15 08:53:32 UTC ---
I am not at all a USB expert - therefore only a guess:
Perhaps at least one root cause is the particular piece of
hardware "HP Officejet 6300 series" - more percisely
the USB stuff therein.
Alan Stern wrote in the "USB device reset while printing"
mail thread on the linux-usb@vger.kernel.org mailing list
(see comment #10)
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Your printer has a mass-storage interface
..
Starting in 3.1 the kernel continually polls this mass-storage
interface, looking for media-change events (such as insertion of a
memory card). Right at the time you began printing, the mass-storage
interface stopped responding to these polls. After 30 seconds the
computer realized something was wrong, so it reset the printer.
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It would work if the mass-storage interface did not stop responding
i.e. when both the printing interface and the mass-storage interface
could work simulaneously.
I don't know if it is o.k. when interfaces in a USB device
only work mutually exclusive.
I don't know if it is o.k. when the whole USB device is reset
because one of its interfaces stopped responding
while at the same time another interface is in use.
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