I have a diplay w/ touch functionality, that communicates via either I2C, SPI or Serial (datasheet).
I want to use it in a mono-application.
The display has sufficient power and is connected correctly (triple-checked). As described in the specs it defaulted to some sort of terminal mode after boot and should display any chars it received via its interface.
To get to talk to it I've listed all 66 or so serial-ports known to arch and tried to open each.
As expected only /dev/ttyAMA0 could be opened. I set the baudrate from within the program and tried to communicate, but didn't get any results.
What am I missing?
Do I need to do any more preperations?