Hi, > A restart transfer is when you just repeat the START condition, without > putting the device address on the bus again.
Well, never heard this term before. Where did you get it from? > In the MXS driver we put the device address on the bus for every > transaction we get handed in from the i2c core, so there is never a > situation where we just repeat the start condition without sending out > the device address. Before this patch we would not match every > transaction, but only the last in the list of pending ones, with a STOP > condition, which is a violation of the spec. I still don't get it. You can drop a STOP if you replace it with a repeated start. In fact, this is crucial in multi-master setups, otherwise another master could break into your transfer containing multilple messages. So, if MXS does the right thing on sending START (doing a correct start sequence), we should not send STOP. If it needs the STOP to create a correct START, then be it. But then, I'd wonder why it worked so far... Regards, Wolfram -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
