On Tue, Sep 23, 2014 at 08:52:12PM +0200, Henrik Rydberg wrote: > >>> So I am not very happy with having a new > >>> tool. In the end, it may also disturb older clients which will not know > >>> what to do with HOVER. > >>> And the ABS_MT_DISTANCE approach used to be fully retro-compatible > >>> (assuming that the hovering distance is small enough for the user not to > >>> detect it). > >> > >> Except that if we start getting devices that can actually tell the > >> distance we'd need special casing 0/1 handling, no? > > Logically, a hovering object which does not support real distance reporting > would simply be present in the contact list but have ABS_MT_TOUCH = 0. > However, > I do not think all layers of the stack supports this notion.
That unfortunately does not give us indication whether device supports hover or not: we'll know only when we see it. -- Dmitry -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
