Messages in this thread | | | Date | Sun, 21 Sep 2014 21:23:25 +0200 | From | Lars-Peter Clausen <> | Subject | Re: [PATCH] i2c: Add generic support passing secondary devices addresses |
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On 09/21/2014 07:49 PM, Wolfram Sang wrote: > >>> This raises the first question for me: Are the additional addresses >>> configurable? Sadly, I can't find good documentation for the adv7604. >>> Otherwise, if I know I have a adv7604 and know its addresses, this >>> information should go into the driver and not the DT. >>> >> >> They are. The current driver hard codes the other addresses, but that's not >> working when you have multiple adv7604s on the same I2C bus. > > How is this configured? I can't imagine every address has its own > setting, but rather some 1-3 pins which select a certain block of > addresses? >
Every secondary address has its own register and can be set to any valid I2C address.
- Lars
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