>Number: 112944
>Category: usb
>Synopsis: [patch] Bi-directional access to HP LaserJet 1010 printer on
>USB seems faulty
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-usb
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Thu May 24 14:40:02 GMT 2007
>Closed-Date:
>Last-Modified:
>Originator: Peter van Heusden &
>Release: FreeBSD 6.2-STABLE i386
>Organization:
Webbed Feet
>Environment:
System: FreeBSD leftside.wfeet.za.net 6.2-STABLE FreeBSD 6.2-STABLE #5: Thu May
24 08:13:46 SAST 2007 [EMAIL PROTECTED]:/usr/obj/usr/src/sys/LEFTSIDE i386
FreeBSD 6-STABLE as of 23 May 2007
Intel Celeron 768 MHz, 256 MB RAM
USB:
dmesg output:
uhci0: <VIA 83C572 USB controller> port 0xd400-0xd41f irq 11 at device 4.2 on
pci0
uhci0: [GIANT-LOCKED]
usb0: <VIA 83C572 USB controller> on uhci0
usb0: USB revision 1.0
uhub0: VIA UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
uhci1: <VIA 83C572 USB controller> port 0xd000-0xd01f irq 11 at device 4.3 on
pci0
uhci1: [GIANT-LOCKED]
usb1: <VIA 83C572 USB controller> on uhci1
usb1: USB revision 1.0
uhub1: VIA UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 2 ports with 2 removable, self powered
...
ulpt0: Hewlett-Packard hp LaserJet 1010, rev 1.10/1.00, addr 2, iclass 7/1
ulpt0: using uni-directional mode
usbdevs -v output:
addr 1: full speed, self powered, config 1, UHCI root hub(0x0000), VIA(0x0000),
rev 1.00
port 1 powered
port 2 addr 2: full speed, self powered, config 1, hp LaserJet 1010(0x0c17),
Hewlett-Packard(0x03f0), rev 1.00
Controller /dev/usb1:
addr 1: full speed, self powered, config 1, UHCI root hub(0x0000), VIA(0x0000),
rev 1.00
port 1 powered
port 2 powered
>Description:
CUPS on FreeBSD interacts badly with the HP LaserJet 1010 printer since
it tries to read bytes from /dev/ulpt when select() claims they are
available, yet hangs on read. Disabling bidirectional printing solves
this problem.
>How-To-Repeat:
Try to read from /dev/ulpt0 when a HP LaserJet 1010 is attached.
>Fix:
Patch attached.
>Release-Note:
>Audit-Trail:
>Unformatted:
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