Hi, This is perhaps more a POSIX/general programming question than NuttX but you are all, so often, so very helpful :)
A touchscreen peripheral (SAMA5D2 as it happens) delivers X and Y coordinates scaled 0-4095. LVGL wants them scaled to the actual size of the display (800x480 in my case). I'm not 100% sure that the chip’s TSD driver is the place to scale it? The TSD driver creates a generic /dev/input0 character driver, which is what LVGL (set via Kconfig) opens. Scaling within the LVGL code isn’t right either, I don’t think? I can only think of either: 1) creating a new character driver that does a translation – registered as /dev/input1 (or whatever) that LVGL uses, and this driver reads input0 when required and returns translated values. 2) Enhance the chip's TSD driver after all, using a Kconfig setting to enable X/Y scaling to the display's size (set in board-specific files already). Both seem a little messy though so perhaps I’m missing something obvious? Can't be the first to need to do this? Thanks, TimH
