On Wed, Oct 10, 2012 at 04:25:58PM +0200, ludovic.desroches@xxxxxxxxx wrote: > From: Ludovic Desroches <ludovic.desroches@xxxxxxxxx> > > If the i2c message length is zero, i2c-at91 will directly return an error > instead of trying to send a zero-length message. > > Signed-off-by: Ludovic Desroches <ludovic.desroches@xxxxxxxxx> What happens if you send a 0 byte message? Some hardware is able to do this and it will be used in SMBUS QUICK which the driver states to support according to at91_twi_func(). Regards, Wolfram -- Pengutronix e.K. | Wolfram Sang | Industrial Linux Solutions | http://www.pengutronix.de/ |
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