On Fri, 04 Mar 2005 17:20:24 +0100, Hans-Christian Egtvedt <[EMAIL PROTECTED]> wrote: > On Fri, 2005-03-04 at 09:52 -0500, Dmitry Torokhov wrote: > > On Fri, 4 Mar 2005 14:03:37 +0200, Alexey Dobriyan <[EMAIL PROTECTED]> > > wrote: > > > On Friday 04 March 2005 12:30, Hans-Christian Egtvedt wrote: > > <snip info about kref> > > > As far as the driver goes: > > > > - yes, it does need input_sync; > > One problem with input_sync is that the panel get's too fast, and double > click is experienced quite often, maybe some threshold is needed for low > values in Z-direction? > > I'm probably doing something wrong here since I experience easy > doubleclicks when I just lightly touch the screen. >
Yes, I think you need to use some threshold when reporting BTN_TOUCH event. Still, always report ABS_PRESSURE as is. This way the touchscreen is useable via legacy interfaces (mousedev. tsdev) and if a specialized userspace driver is written it still can get pretty much unmangled data from /dev/input/eventX. This will also allow such driver adjust touchpad sensitivity, if needed. > > Also, is there a way to query the screen for actual size? > > Sorry, the panel is a fixed size, and it gives out coordinates from 0 -> > 4095 in both X- and Y-direction. In Z-direction (pressure strength) it > goes from 0 to 255. > > Or did you want the size of the screen? Meaning you want to know if it's > a 15", 17" and so on? > No, not physical sizes. I was wondering if soe touchscreens are reporting let's say actual coordinates from 1100-3600 and others from 600-3850, instead of full 0-4096. Is there a way to query the hardware and find the actual min and max for a device so it can be reported to userspace. -- Dmitry P.S. When you post the updated version could you please CC Vojtech Pavlik <[EMAIL PROTECTED]> as he is the current input system maintainer and linux-input mailing list at [EMAIL PROTECTED] Thanks! - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
