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Subject: Re: [PATCH 0/3]: Sparc OF I2C support.
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From: "Jon Smirl" <jonsmirl@gmail.com>
Date: Thu, 21 Aug 2008 17:53:02 -0400

> >  2) When CONFIG_SPARC, shift the device address down by one bit before
> >    giving it to the Linux I2C layer.
> 
> How do you deal with a 10-bit address i2c device? Is it multiplied by two too?

Yes.