On Mon, Oct 10, 2011 at 04:45:45PM -0700, Greg KH wrote: > On Thu, Oct 06, 2011 at 02:58:44PM -0400, Alan Stern wrote: > > On Thu, 6 Oct 2011, Sarah Sharp wrote: > > > > > To add USB 3.0 link power management (LPM), we need to know what the U1 > > > and U2 exit latencies are for the xHCI host controller. External USB 3.0 > > > hubs report these values through the SuperSpeed Capabilities descriptor in > > > the BOS descriptor. Make the USB 3.0 roothub for the xHCI host behave > > > like an external hub and return the BOS descriptors. > > > > > > The U1 and U2 exit latencies will vary across each host controller, so we > > > need to dynamically fill those values in by reading the exit latencies out > > > of the xHC registers. Make the roothub code in the USB core handle > > > hub_control() returning the length of the data copied. > > > > > > Signed-off-by: Sarah Sharp <sarah.a.sharp@xxxxxxxxxxxxxxx> > > > > Looks okay to me. For the hcd.c part: > > > > Acked-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> > > Sarah, any objection to me queueing this up? Nope. :) Sarah Sharp -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
