freebsd stable - Dec 2009 - HP LJ 1020: "ulpt0: offline"

I have a HP Laserjet 1020 printer that I've been using with FreeBSD 7
and 8 for the last few years. It's connected via USB as described in my
blog at http://menhenitt.com.au and it's been working up until today.

I just did a csup to RELENG_8 as of yesterday. After a make
build/installworld and build/installkernel and "portupgrade -a",
it's
stopped working. When I power it on, I hear its startup noise and then
the second noise as the firmware is downloaded to it. After that, it
doesn't respond. CUPS reports "Waiting for printer to become
available..." and dmesg shows:

ugen1.3: <Hewlett-Packard> at usbus1
ulpt0: <Hewlett-Packard HP LaserJet 1020, class 0/0, rev 2.00/1.00, addr
3> on usbus1
ulpt0: using bi-directional mode
ulpt0: offline

The last line "ulpt0: offline" appears just after the firmware
download.

Foo2zjs doesn't seem to have changed recently. CUPS has changed but I
doubt that's the problem. Maybe something to do with USB drivers?

Does anybody have any clues please.

Thanks,
    Graham

Graham Menhennitt wrote:
> Foo2zjs doesn't seem to have changed recently. CUPS has changed but I
> doubt that's the problem. Maybe something to do with USB drivers?
>   
In 8.x, CUPS 1.4.x wants libusb support and the ugen driver, rather than 
ulpt. Once I changed over to that, all was fine.

It's a mite irritating that device permissions can't be tied down easily
as they can with ulpt(4), because CUPS needs to see the /dev/usb/* 
device nodes. On my print server, I just have devfs rules for the new 
device nodes.

P.S. uscanner has also gone away. I use a multi-function device (Epson 
CX3650). The sane-backends can also use libusb now.

cheers,
BMS