Subject: Re: Dallas semiconductor "one-wire" and envsys(4)
To: Ben Harris <>
From: Garrett D'Amore <>
List: current-users
Date: 02/27/2006 08:04:37
Ben Harris wrote:
> In article <> you write:
>> I'm currently working on a driver for one-wire devices (such as the
>> DS18B20 temperature sensor) ...
>> It's not clear to me whether this would be something appropriate to
>> bring in to NetBSD or not ...
> We've already got a little bit of one-wire bus support in sys/dev/ic/ds.h,
> which is used by sys/arch/acorn26/ioc/ssn.c and by something in
> sys/arch/amiga.  Making it more general might well be useful, and ISTR that
> the acorn26 implementation never worked properly anyway.  If it had, I would
> have ported it to NetBSD/acorn32 so that we could get the system Ethernet
> address on acorn32 systems without help from RISC OS.
> Or, in summary, yes please!
Didn't I see some recent commits of gpiobus() additional functionality,
so that you could have child devices hanging off of gpios?

Garrett D'Amore, Principal Software Engineer
Tadpole Computer / Computing Technologies Division,
General Dynamics C4 Systems
Phone: 951 325-2134  Fax: 951 325-2191