I2C with bus muxes

Ben Warren bwarren at qstreams.com
Fri Jul 21 05:01:37 EST 2006


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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