On Tue, Jan 06, 2015 at 10:17:32PM +0100, Bruno Prémont wrote: > > One big issue I see here is that you start dropping all events at a random > point in time. > You may end up within a gesture or just while a button is down and remain > so until that same button gets pressed again on unmute. > > On your touchscreen, how do things behave if you trigger the muting while > you are dragging or doing some gesture (and unmute when noone touches > the touchscreen)? That is right, I thought of it for pointing devices, and it seemed that it should not be too much of a problem, even thought it would be better to handle it properly. > > If applied to a keyboard, what happens when you mute while keys are pressed > and unmute when they have long been released? This case is actually a bigger problem and I didn't think of it. > > > If you could send a "reset" event to input listeners when muting you could > work around most issues as any application making use of events would know > that after this "reset" event things should not depend on any past state. I could definitely do something like this and make sure all the events are handled properly. > > > Possibly a better way to achieve your aim is to just unbind and re-bind > the device from device driver, causing software hotplug. > That way you are sure no application will perform incorrect guesses while > device is "muted". This is another good solution that would work in my case. If somebody think this patch can be of any interest, I'll be happy to submit a v2 with correct handling of current events at the time of mutting. Best regards -- 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