On Saturday, September 20, 2014 at 05:01:05 PM, Hans de Goede wrote: > Hi Marek, > > This time a patch-set for next :) > > Currently one can choose between 2 poll methods for usb keyboards, both of > which are suboptimal. One option is to use control messages to get reports, > which some devices (e.g. my kvm) do not like. The other option is to use > interrupt urbs, but usb_submit_int_msg waits for the interrupt packet to > show up, meaning that each poll takes 40 ms, slowing anything else down > tremendously. > > This patch-sets adds a third method (only usable with ehci for now), which > makes use of the int_queue concept in the ehci code. This allows us to > submit an interrupt message, and then poll for the actual completion of > this message giving us much lower latency then even the control message > method (effectively this gives us 0 latency), while using standard > interrupt messages which seems to keep keyboards much happier.
I'd be happy to just pick V2 as it would be. The patches look really nice. Best regards, Marek Vasut _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
