Hi, I hope this is the right subforum to post in.
I've been building my own stripped back version of Linux using BuildRoot https://buildroot.org/, specifically based off of Erpiam https://github.com/gbevin/erpiam.
Everything is working great with the official Raspberry Pi touchscreen except the mouse cursor is not 1:1 with the physical position of my finger on the screen. It also seems that I need to plug in a mouse or something before the touchscreen responds. I'm not sure what the difference is between what I have and what the normal OS's do.
The config settings seem to be what is required 'CONFIG_TOUCHSCREEN_RPI_FT5406=m' etc.
Any help would be much appreciated.