Dmitry Torokhov wrote: > On Mon, Jun 28, 2010 at 10:34:13AM +0200, Henrik Rydberg wrote: >> It is a bit confusing I agree, but the document is correct. The empty >> input_mt_sync() is used when there is no data to report, no lifted fingers, >> nothing. Just imagine a device which gets polled periodically. > > If there is no new data to report why we need to call input_mt_sync() at > all? You can send input_sync() but input core will filter it out... > Yep, that is the reason. Admittedly, this is a corner cases that type A does not handle very gracefully, but it works. The only device so far where this seems useful is for the magic mouse, which does not want to report BTN_TOUCH at all. Henrik -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
