G'Day, I was directed here from the linux-omap-open-source mailing list. I am using an OMAP5912, and have been looking at what power savings I get when using Deep Sleep (echo -n "standby" > /sys/power/state), and noticed that there is no change in vmain. I am hoping that turning the Ethernet controller off before entering deep sleep will make a significant difference, but I do not know how to do this. If I look in drivers/net/smc91x.c, there is already a suspend function written, which apparently powers the device down. I do not believe this is currently being used anywhere, and I am not sure how exactly it is supposed to be used to begin with. I was hoping that someone here would be able to give me some information on using device_driver->suspend() functions. As an aside, is there anyone here who knows how to use Big Sleep in an OMAP environment? I have worked out how to configure it, but not how to enter it. As this is not an OMAP mailing list, I am not expecting anyone here to know the answer to that one, but it cannot hurt to ask. Thanks for your time, Matthew
