HDMI Touchscreen

[Nard SDK mailing list]

Hi Greg
I have very limited experience with touch screens, but I think it is common 
for most of them to connect with USB and become a standard Linux INPUT 
device. Much the same as an ordinary desktop USB mouse. The Pi videocore libs 
is in this case not needed. Instead there are drivers in the kernel and in 
X-Windows.

I suggest you connect the touchscreen to a Linux PC first. When you get it 
work there it will be a lot easier to transfer the same setup to the Pi. 
Google will be your friend. Here are some links that might get you started:
https://how-to.fandom.com/wiki/How_to_configure_the_Linux_kernel/drivers/input/touchscreen
https://raspberrypi.stackexchange.com/questions/99700/touchscreen-xinput-calibration-not-working

/Ronny


------------------------------------------
> Hi,
>
> I'm working to compile Nard to use to display a Python tkinter touchscreen
> app.  I am looking to use one of the standard capacitive touchscreens that
> are normally compatible with Raspbian and connects via HDMI.  I am working
> to follow your instructions to add new applications but I am not sure what
> package(s) I need to download to work the HDMI output and touchscreen
> input.
>
> I did see the add-on page and it looks like your videocore-libs takes care
> of the HDMI output but I am still not sure does that also cover the
> touchscreen input?  Thanks.
>
> Greg