Hi Eric,
On Wed, Jul 3, 2013 at 8:53 PM, Eric Nelson <[email protected] > wrote: > Hi Erik, > > Sorry for the delay, but I finally got around to checking this patch. > > > On 07/03/2013 07:11 AM, Erik Botö wrote: > >> The previous behavior of the driver did not work properly with Qt5 >> QtQuick multi touch-point gestures, due to how touch-points are >> reported when removing a touch-point. My interpretation of the >> available documentation [1] was that the driver should report all >> touch-points between SYN_REPORTs, but it is not explicitly stated so. >> I've found another mail-thread [2] where the creator of the protocol >> states: >> >> "The protocol defines a generic way of sending a variable amount of >> contacts. The contact count is obtained by counting the number of >> non-empty finger packets between SYN_REPORT events."-Henrik Rydberg >> >> I think this verifies my assumption that all touch-points should be >> reported between SYN_REPORTs, otherwise it can not be used to obtain >> the count. >> >> > Your assumptions are correct, and if I read things correctly, they're > already fixed, but in a different source tree... > > I'm guessing that someone forgot to mention that there are **two** > primary kernel trees for i.MX. Android and not-Android. > > The Android kernel seems to have this fixed in a different way, > by doing some additional book-keeping of current touches: > http://git.freescale.com/git/**cgit.cgi/imx/linux-2.6-imx.** > git/tree/drivers/input/**touchscreen/egalax_ts.c?id=** > 3b9608406bb699de5ff02760c745e6**2212b4c280<http://git.freescale.com/git/cgit.cgi/imx/linux-2.6-imx.git/tree/drivers/input/touchscreen/egalax_ts.c?id=3b9608406bb699de5ff02760c745e62212b4c280> > > In Freescale's repository, the current Android stuff is in a tag > (jb4.2.2_1.0.0-ga) instead of a branch, so it's a bit difficult > to navigate through the web interface: > > http://git.freescale.com/git/**cgit.cgi/imx/linux-2.6-imx.** > git/tag/?id=jb4.2.2_1.0.0-ga<http://git.freescale.com/git/cgit.cgi/imx/linux-2.6-imx.git/tag/?id=jb4.2.2_1.0.0-ga> > > Hey Freescalers, can we get a head nod that we can consolidate > these? I think all that's needed is to add the SINGLE_TOUCH stuff > into the Android branch. > > Erik, can you try out the Android version and see if it works for > you? > I did a quick test where I just copied the Android version, removed the EARLYSUSPEND stuff so it would build inside a regular kernel but it is not behaving properly for me. Even one finger clicks doesn't seem to work, looks like it never gets released. Unfortunately I don't have much time to investigate this further. But since the two kernels are different anyway I guess there's no danger with merging my patch suggestion in the non-android kernel? Cheers, Erik > > Please advise, > > > Eric > > -- ============================================= Erik Botö Senior Software Engineer Pelagicore AB Ekelundsgatan 4, 6tr, SE-411 18 Gothenburg, Sweden Mobile: +46 (0)76 881 72 03 E-Mail: [email protected] =============================================
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