On Tue, 7 Mar 2006, Tehn Yit Chin wrote: > After reading through the mailing list archives, I sort of work it out. ie > > echo -n 1 > /sys/devices/platform/s3c2410-i2c/power/state > > puts the device into suspend mode. > > However, the driver's behaviour doesn't change if I echo a different > number into it. What does this number suppose to do? It depends on how the i2c subsystem (and possibly the driver) treats the number. It might have only 2 states - on (0) and off (1). But, you'll have to check the i2c documentation, the code, and possibly the developers to know for sure.. Thanks, Patrick