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Documentation: i2c: slave-interface: add note for driver development

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Make it clear that adding slave support shall not disable master
functionality. We can have both, so we should.

Signed-off-by: Wolfram Sang <[email protected]>
This commit is contained in:
Wolfram Sang 2016-08-25 19:27:40 +02:00
commit 30851a7c21
1 changed files with 5 additions and 0 deletions
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Documentation/i2c/slave-interface
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@ -145,6 +145,11 @@ If you want to add slave support to the bus driver:
* Catch the slave interrupts and send appropriate i2c_slave_events to the backend.
Note that most hardware supports being master _and_ slave on the same bus. So,
if you extend a bus driver, please make sure that the driver supports that as
well. In almost all cases, slave support does not need to disable the master
functionality.
Check the i2c-rcar driver as an example.