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[SOLVED] problem with Qt and tslib

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  • M Offline
    M Offline
    mostafanfs
    wrote on last edited by
    #10

    Fair enough !
    I'm pretty sure it's: ft5x0x_ts
    I saw it by "cat /proc/bus/input/devices"

    Can I edit tslib sources so it wouldn't give that error?

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    • SGaistS Offline
      SGaistS Offline
      SGaist
      Lifetime Qt Champion
      wrote on last edited by
      #11

      IIRC, there was a catch between that device and tslib, I don't rememberer all the details, but if you search for the two together you should find some infos.

      Interested in AI ? www.idiap.ch
      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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      • M Offline
        M Offline
        mostafanfs
        wrote on last edited by
        #12

        You mean on this site?
        Cause I didn't find very helpful information on net. Seems like other people have or had the same problem too but nobody posted something useful.

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        • M Offline
          M Offline
          mostafanfs
          wrote on last edited by
          #13

          SGaist I have another question. Is there an alternative to tslib?
          I mean say I never gonna make it with tslib, do I have other options to work with touch screen inside a Qt program?
          What about Qt5? I was reading this page http://doc-snapshot.qt-project.org/qt5-dev/embedded-linux.html and seems like Qt5 has some options for new multitouch controllers.
          Another question: How do I know if my board supports Qt5 versions? Can I cross compile a Qt-everywhere-5.2.1 just like the way I did for Qt-everywhere4.7.0 and copy lib folder and stuff?

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          • SGaistS Offline
            SGaistS Offline
            SGaist
            Lifetime Qt Champion
            wrote on last edited by
            #14

            IIRC, Qt 5 has the evdev plugin in addition to also support tsllib.

            What board are you using ?

            Basically yes, depending on your needs you might have to provide additional libraries in order to fully build Qt 5.

            Interested in AI ? www.idiap.ch
            Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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            • M Offline
              M Offline
              mostafanfs
              wrote on last edited by
              #15

              Dear SGaist I managed to get tslib to work with touch screen controller by modifying controller driver in kernel. Now I can run ts_calibrate successfully and everything seems to be fine.
              But still Qt doesn't take touch actions. I tried to compile Qt again with some modifications in qmake.conf like:
              QMAKE_INCDIR +=
              QMAKE_LIBDIR +=
              QMAKE_CFLAGS += -I
              QMAKE_LFLAGS += -L
              Respectively pointing to tslib Header and Lib directory. But still I can not use touch as an input to compiled Qt demo programs.
              I added -qt-mouse-tslib and -plugin-mouse-tslib into configure.
              I've set all necessary environmental variables for Qt and tslib.

              Please help me. I got too excited after solving controller's problem but now I'm stuck at a point all over again.

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              • SGaistS Offline
                SGaistS Offline
                SGaist
                Lifetime Qt Champion
                wrote on last edited by
                #16

                It's not a build problem.

                tslib is used in a plugin. You have to configure your application to start using the plugin

                Interested in AI ? www.idiap.ch
                Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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                • M Offline
                  M Offline
                  mostafanfs
                  wrote on last edited by
                  #17

                  Yeah I kind of have the feelings that it has something to do with the environment variables and things like that. But I went based on this page:
                  http://qt-project.org/doc/qt-4.7/qt-embedded-pointer.html
                  Then I don't know what is wrong.
                  Any specific idea?

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                  • SGaistS Offline
                    SGaistS Offline
                    SGaist
                    Lifetime Qt Champion
                    wrote on last edited by
                    #18

                    Since you talked about both Qt 4 and 5, which version are you currently using ?

                    Interested in AI ? www.idiap.ch
                    Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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                    • M Offline
                      M Offline
                      mostafanfs
                      wrote on last edited by
                      #19

                      Ok I figured there was some problems with environment variables. Apparently device name is something else. Now it seems it's working.
                      By the way I meant Qt4.

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