If you have an oscilloscope I'm sure that you can see this crazy noise ... . During my test i could saw the noise in the driver.
I also discovered that the TI driver include a filter to the jitter issue => module dejitter delta=100 I'm sure the jitter filter from TI is much better than mine ..... ... maybe it will be better to use the TI driver (TSLIB) than the default driver ..... . Robert Nelson ? Any idea how to do it ? I found some tutorial, but in my last tried I didn't succeeded : http://boundarydevices.com/debian-in-more-depth-adding-touch-support/ Micka, On Thu, Mar 13, 2014 at 6:27 PM, Roop Singh <[email protected]> wrote: > My apologies: > > -rw-r--r-- 1 root root 11K Feb 15 01:10 ti_am335x_tsc.ko > > The jitter does not seem to be much better with this. Worse than the > jitter is sometimes when I press and release, there is a much larger jump, > say 50 pixels away from my finger. I see this with a 4.3" newhaven display. > I have some 7" screens on the way, perhaps there will be a difference there? > > ------------------------------ > *From:* Micka [mailto:[email protected]] > *To:* [email protected] > *Sent:* Thu, 13 Mar 2014 00:59:42 -0800 > > *Subject:* Re: [beagleboard] Re: Touchscreen Jitter / Jumping on > Beaglebone Black LCD Capes > > Are you sure ? => > https://github.com/RobertCNelson/linux-dev/blob/am33x-v3.8/patch.sh#L847 > > > On Tue, Mar 11, 2014 at 7:38 PM, <[email protected]> wrote: > >> Hi Micka, >> >> Would you be able to send me the driver you compiled with these changes? >> RobertCNelson's latest builds (-40) have ti_am335x_tsc.ko from last year. >> >> I tried the steps you provided last night, I got as far as compiling the >> kernel but the driver I made had invalid ELF data so I did not try loading >> it. >> >> Alternatively, the patch you have, which version of the ti_am335x_tsc.c >> driver >> is it meant to patch? there's been a lot of activity on ti_am335x_tsc.c. >> >> -- >> For more options, visit http://beagleboard.org/discuss >> --- >> You received this message because you are subscribed to the Google Groups >> "BeagleBoard" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> For more options, visit https://groups.google.com/d/optout. >> > > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to a topic in the > Google Groups "BeagleBoard" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/beagleboard/SXTaSUf4aSk/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > [email protected]. > > For more options, visit https://groups.google.com/d/optout. > > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
