Bug in ultp ? (amd64 + HP 1020 printer)

[Aleksey Salow]

Hello

I also has strange behaviour of ulpt driver. I have -current (Aug 5)
on AMD64 and Canon LBP-810 printer connected to usb. I setup lpd and
use it as network printer from my home net.

When I try print something from my windows machine, in most cases I
give next messages at console:

Aug  5 02:22:26 woodpecker kernel: ulpt0: <Canon Canon CAPT USB
Printer, class 0/0, rev 1.10/1.00, addr 3> on uhub0
Aug  5 02:22:26 woodpecker kernel: ulpt0: using bi-directional mode
Aug  5 02:22:56 woodpecker kernel: ulpt0: at uhub0 port 1 (addr 3) disconnected
Aug  5 02:22:56 woodpecker kernel: ulpt0: detached
Aug  5 02:22:58 woodpecker kernel: ulpt0: <Canon Canon CAPT USB
Printer, class 0/0, rev 1.10/1.00, addr 3> on uhub0
Aug  5 02:22:58 woodpecker kernel: ulpt0: using bi-directional mode
Aug  5 02:23:08 woodpecker kernel: ulpt0: at uhub0 port 1 (addr 3) disconnected
Aug  5 02:23:08 woodpecker kernel: ulpt0: detached
Aug  5 02:23:15 woodpecker kernel: ulpt0: <Canon Canon CAPT USB
Printer, class 0/0, rev 1.10/1.00, addr 3> on uhub0
Aug  5 02:23:15 woodpecker kernel: ulpt0: using bi-directional mode

Also I get this messages when run (I get 'testfile' from lpd spool directory):
cat testfile > /dev/ulpt0

I can provide any debug info if this helps to solve this problem.

Thanks.