On Mon, May 24, 2010 at 07:48:00PM +0200, Henrik Rydberg wrote: > Dmitry Torokhov wrote: > [...] > >>>> I think we need to add an ioctl to enable user land driver/client to > >>>> signal the kernel driver to send all events without filtering, just > >>>> once. Hot-plugged devices and X driver starts after user has contacted > >>>> with the device are two examples that the client would miss filtered > >>>> events. > >>>> > >>>> Dmitry, do you think it is a valid suggestion? > >>> What about using EVIOCGKEY/EVIOCGSW/EVIOCGABS? > >> Those EVIOCs only give us the static values (max/min/supported keys, > >> etc.). We need their dynamic input data here, the actual x, y, > >> button, pressure, etc. Am I missing something about those EVIOs? > >> > > > > Yes you are ;) Supported events are reported via EVIOCGBIT, EVIOCGKEY and > > EVIOCGSW will return current state of keys/switches. As far as EVIOCGABS > > goes, it also returns, besides min/max/etc, last reported _values_ of the > > ABS_* events. > > > > Ping is not alone. :-) > > But it does not work for MT events -- yet. > Yes, this is true. I think the most interesting is the switch data, since they may not change at all. The rest is transient and should refresh "fairly quickly". -- Dmitry -- 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
