Smart pi touch problems

Hello , I am deploying a Qt app on RPI3 target using buildroot toolchain . Also i generated Rpi image from Buildroot . So i would like to use the Pi touchscreen but I don't know how to configure it . Currently my App appears on rpi but the touchscreen doesn't work .
Any helps please
thank you

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Sent from: http://buildroot-busybox.2317881.n4.nabble.com/

Hello Aziz,

Did you enable/configure the appropriate device tree overlay for your touchscreen (see [1], [2])?

Regards,
Peter

[1] https://www.raspberrypi.org/documentation/configuration/device-tree.md
[2] https://github.com/raspberrypi/firmware/blob/master/boot/overlays/README