[JamesGKent]

to load the touchscreen driver you need to add the following to the /boot/config.txt:

Code:

hdmi_force_hotplug=1
hdmi_group=2
hdmi_mode=87
hdmi_cvt 800 480 60 6 0 0 0
dtoverlay=ads7846,cs=1,penirq=25,penirq_pull=2,speed=50000,keep_vref_on=0,swapxy=0,pmax=255,xohms=150,xmin=200,xmax=3900,ymin=200,ymax=3900
display_rotate=0

to make the touch work i had to create the advancedsettings.xml file with the following contents:

xml:
<advancedsettings>

    <touchscreen>

        <x_offset>-50</x_offset> <!-- set pixel x offset to align it to the used display-->

        <y_offset>-50</y_offset> <!-- set pixel y offset to align it to the used display-->

        <x_stretch_factor>0.216392</x_stretch_factor> <!-- stretch/compress the touch x axis-->

        <y_stretch_factor>0.132523</y_stretch_factor> <!-- stretch/compress the touch y axis-->

    </touchscreen>

</advancedsettings>

adding a mouse.xml to the keymaps folder with the following contents is also beneficial:

xml:
<keymap>

    <global>

        <mouse>

            <leftclick>leftclick</leftclick>

            <rightclick>rightclick</rightclick>

            <middleclick>middleclick</middleclick>

            <doubleclick id="0">noop</doubleclick>

            <longclick id="0">contextmenu</longclick>

            <wheeldown>wheeldown</wheeldown>

            <wheelup>wheelup</wheelup>

            <mousedrag>mousedrag</mousedrag>

            <mousedragend>leftclick</mousedragend>

            <mousemove>noop</mousemove>

        </mouse>

    </global>

</keymap>

if your screen is calibrated differently you can work out the factors for kodi by taking the min and max values for each axis in the config.txt file, eg:
xmin=200,xmax=3900,ymin=200,ymax=3900
the resolution:
W=800, H=480

xstretch=W/(xmax-xmin)
xoffset=xmin*xstretch
y​​​​​​xstretch=H/(ymax-ymin)
yoffset=ymin*ystretch