On Sun, 23 Sep 2012, Peter Stuge wrote: > For starters I would like an API that sets a power domain on or off. > > I think that would be the simplest API, and maybe a good place to > start. There is definitely room for more complex API as well, getting > into various policies and so on, but to begin with just on/off is > fine IMO. > > As I mentioned before in the thread I have no preference whatsoever > for what the API is, but I do want something that can give back a > useful error in case of failure. I'm not sure if sysfs can do that.
It's not clear that any API is needed. If all the devices in the domain are set to be powered off then the whole domain will be shut down; otherwise it will remain powered. Therefore all we need is an API for individual devices, not for domains. Of course, userspace may want to know which devices all belong to the same power domain. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
