Am 21.11.2011 08:35, schrieb Jason Hui: > Hi, Ben, Jean, > > I have one issue about the i2c failure: there will be on-going i2c > transfer while system get reset. > At the time when the reset happens, the slave may pull the SDA to > LOW.After reset, the i2c master may reset, but > the slave may still pull the SDA to LOW since there is no reset pin > for the slave device to do i2c reset, thus > result in the further i2c access failure forever unless we completely > power off the system by pulling out > the battery. >
This is a common failure scenario and should be solved by your adapter driver automatically by issuing 9 clock cycles on detection. -- KR Michael -- 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
