Hi, On Tue, Jul 16, 2013 at 04:19:35PM +0800, Hein Tibosch wrote: > Hi Vikram, > > On a OMAP4460, i2c-bus-3: > > A driver (lm75) is causing many 'timeout waiting for bus ready' errors. > SDA remains high (as it should), but SCL remains low after a NACK. > The bus becomes _unusable for other clients_. > > While probing, "lm75" writes a command, followed by a read + stop, > but the write command is NACK'd. The chip does accept other writes/reads, > it just refuses to ack invalid commands. > > Can you tell me if the patch below would make any sense? Or is it the > responsibility of the client to reset the i2c_smbus? patch below breaks repeated start. -- balbi
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