Date: Mon, 26 Aug 2002 08:29:12 -0700 (PDT) From: =?ISO-8859-1?Q?Mikko_Ty=F6l=E4j=E4rvi?= <mikko@dynas.se> To: Terry Lambert <tlambert2@mindspring.com> Cc: John Nielsen <john@jnielsen.net>, Marco Molteni <molter@tin.it>, freebsd-hackers@freebsd.org Subject: Re: USB support for new HP printers? Message-ID: <20020826082508.X356-100000@atlas.home> In-Reply-To: <3D6A08CC.8DEB339F@mindspring.com>
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On Mon, 26 Aug 2002, Terry Lambert wrote:
> John Nielsen wrote:
> > > have a look at hpoj.sourceforge.net
> > > they plan FreeBSD USB support for a next release
> >
> > I've been all over the site and read some of the docs. The most useful
> > piece of information I found was this:
> >
> > "FreeBSD, NetBSD, and OpenBSD are not yet supported in USB mode, due to
> > missing functionality in the kernel "ulpt" driver (bidirectional I/O,
> > device ID retrieval, switching to 7/1/3, and HP channel-change-request)."
>
>
> I'm pretty sure that bidirectional I/O is supported, or there
> would be no network devices.
[...]
Though the USB stack handles bi-directional communication, ulpt does not:
Static struct cdevsw ulpt_cdevsw = {
/* open */ ulptopen,
/* close */ ulptclose,
/* read */ noread, <---- !
...
In -current, an input routine has been added, but all it does is
discard any data that comes from the printer.
$.02,
/Mikko
Mikko Työläjärvi_______________________________________mikko@rsasecurity.com
RSA Security
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