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By default the header Pin Nr. 7 us used by the 1-wire kernel module.

I would like to change it to a one of the 4 new GPIO Pins of an Rev 2 Pi.

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closed as too broad by goldilocks Jan 10 at 14:39

There are either too many possible answers, or good answers would be too long for this format. Please add details to narrow the answer set or to isolate an issue that can be answered in a few paragraphs.If this question can be reworded to fit the rules in the help center, please edit the question.

The kernel code for bitbanging 1wire on the RPi is a bit messy at the moment, multiple implementations exist. But unless I missed something completely, the only way to change this pin at this moment is to recompile the module, a name that keeps popping up in this context is 'Frank Buss', see for example this thread on the RPi forum –  ikku Feb 7 '13 at 12:04

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