G'Day, Thanks for your reply. I have tried your suggestions out, but have not been able to conserve any additional power. > For device sleeps you just do an 'echo mem > /sys/power/state'. Pm.c > will map which sleep and wake this takes you to. I just tried comparing `standby' with `mem', and there was no difference in vmain --- or anywhere else for that matter, though I was no expecting to see any change elsewhere. > Each individual device will also have a power/state file in the sysfs > directory structure. You can echo a device power state down to the > driver and it will react how if it knows how to enter that state. I tried `standby', `mem' and `disc' with /sys/devices/platform/smc91x/power/state and saw no change; there was nothing printed on the terminal either. I guess it must not be implemented with this driver at the moment, which I guess is why there is no change when I put the whole system to sleep (please correct me if my assumptions are wrong). If it is nothing too difficult to add to the driver, would you be able to direct me to where I may find out how to do this? > Also, in sleeps where you want a good effect, you will need to configure > the external pins to the optimal sleep state. Any floating inputs will > consume a lot of power.... how you drive the pin states really depends > on what it is connected to. That sounds like a rather good tip, thanks! -- Matthew
