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Date:      Tue, 30 Jul 2002 23:18:36 +0100
From:      Josef Karthauser <joe@tao.org.uk>
To:        "Louis A. Mamakos" <louie@TransSys.COM>
Cc:        Dag-Erling Smorgrav <des@ofug.org>, cvs-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG
Subject:   Re: cvs commit: src/sys/conf files src/sys/modules Makefile src/sys/modules/uvisor Makefile src/sys/dev/usb uvisor.c
Message-ID:  <20020730221836.GA12286@genius.tao.org.uk>
In-Reply-To: <200207302158.g6ULw70L015968@whizzo.transsys.com>
References:  <200207301744.g6UHiTsh025084@freefall.freebsd.org> <xzpheihf4sz.fsf@flood.ping.uio.no> <200207302158.g6ULw70L015968@whizzo.transsys.com>

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On Tue, Jul 30, 2002 at 05:58:07PM -0400, Louis A. Mamakos wrote:
> > Josef Karthauser <joe@FreeBSD.org> writes:
> > >   Log:
> > >   Commit a version of the uvisor driver for connecting Handspring
> > >   Visors via USB.
> >=20
> > Shouldn't this rather be done in userland, through ugen?
>=20
> In fact, it is available in userland code as part of code I=20
> contributed to the coldsync package (also in the FreeBSD ports
> tree).

Coldsync doesn't work with my M505, at least the version in the
ports doesn't.  The devel version in their cvs repository doesn't
compile against FreeBSD (current).

> The protocol used with the Handspring Visor and Visor Deluxe
> was reversed engineered with a USB protocol analyzer and is=20
> essentially the same as the serial line protocol but using
> a USB pipe to carry the bits.

It also has some nice "undocumented" handshaking at the beginning
that no-one appears to know what to do with.

> Other USB-attached Palm-like devices do something different
> which doesn't work with the code that I wrote.  Having this
> in the kernel is unlikely to make it *easier* to support, but
> what the heck.  The kernel driver will presumably also work with
> the other legacy PalmOS sync packages that expect at TTY device.

Either way, it's there now.  Use it or choose not to ;).  Tools not
policy.

Joe
--=20
"As far as the laws of mathematics refer to reality, they are not certain;
and as far as they are certain, they do not refer to reality." - Albert
Einstein, 1921

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