i2c_write: document master send mode
When no explicit start register is given, the i2c message is emitted
in master send mode.

Signed-off-by: Aleksander Morgado <aleksander@aleksander.es>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
1 parent f0624a7 commit 0657fdc4cdc847c3f3bdc567405c1d115fc54ba2
@Aleksander Morgado Aleksander Morgado authored on 21 Aug 2018
Sascha Hauer committed on 22 Aug 2018
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commands/i2c.c