Subject: Re: LaserJet 1200, USB, and NetBSD
To: Jukka Marin , Current Users <current-users@NetBSD.ORG>
From: Paulo Alexandre Pinto Pires <email@example.com>
Date: 12/30/2002 14:21:46
On Mon, Dec 30, 2002 at 01:08:40AM +0200, Jukka Marin wrote:
> On Mon, Dec 09, 2002 at 05:42:01PM +0200, Jukka Marin wrote:
> > I purchased a HP LaserJet 1200, connected it to my NetBSD box (running
> > 1.6 release at the moment) - and it didn't work.
> I finally got a chance to work on the problem. I commented out the
> "|| id->bInterfaceProtocol == UIPROTO_PRINTER_1284" part in USB_ATTACH(ulpt)
> in ulpt.c and the printer now works (printing ASCII and PS).
> So, the problem is that the HP presents the IEEE 1284 endpoint first and
> NetBSD picks it (instead of the "normal" bidirectional endpoint), but
> can't talk the correct language to the printer, which then completely
> ignores everything transmitted by NetBSD.
> The question is: How do I properly fix this? Using usb_quirks, I guess,
I glanced at the sources and I didn't, in such a quick look, find a
special way of handling devices matched as IEEE 1284. Do we really
have full IEEE 1284 compliant communication? If not, does it have
anything to do with patent problems mentioned in
Is such document at all relevant for this case?
... Qui habet aurem audiat quid Spiritus dicat ecclesiis.