From: Ben Warren <bwarren@qstreams.com>
To: Kumar Gala <galak@kernel.crashing.org>
Cc: Linuxppc-embedded@ozlabs.org
Subject: Re: I2C with bus muxes
Date: Thu, 20 Jul 2006 15:01:37 -0400 [thread overview]
Message-ID: <1153422097.19682.84.camel@saruman.qstreams.net> (raw)
In-Reply-To: <61F75343-B9B9-4349-A463-E39C7532A378@kernel.crashing.org>
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Way cool! Thanks a lot. I'll try it out when my hardware comes in...
regards,
Ben
On Thu, 2006-07-20 at 13:51 -0500, Kumar Gala wrote:
> On Jul 20, 2006, at 10:16 AM, Ben Warren wrote:
>
> > Hello,
> >
> > Has anyone implemented devices like the Philips PCA954x I2C bus muxes
> > under the /sysfs device model? I have some optical transponders on my
> > board that through the wisdom of some committee all have the same
> > fixed
> > I2C address. To get around this, we put them behind muxes, creating
> > 'virtual' I2C busses. I imagine this could be modeled something like
> > the USB hub model, but that's just a first stab.
>
> I'm pretty sure I submitted a set of patches for this upstream.
> However there was some desire to hold off until some other changes.
>
> http://marc.theaimsgroup.com/?l=linux-kernel&m=114376108231285&w=2
> http://marc.theaimsgroup.com/?t=114316214100001&r=1&w=2
>
> - kumar
>
>
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next prev parent reply other threads:[~2006-07-20 19:01 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-07-20 15:16 I2C with bus muxes Ben Warren
2006-07-20 15:22 ` Travis B. Sawyer
2006-07-20 15:36 ` Ben Warren
2006-07-20 18:51 ` Kumar Gala
2006-07-20 19:01 ` Ben Warren [this message]
2006-07-20 19:18 ` Kumar Gala
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