PR created as https://github.com/raspberrypi/linux/pull/6293. It works for me on a 20x4 display.
If you wish to test it, the "sudo rpi-update pulls/6293" should update your system with the test kernel build once complete in about 45mins time. Normal warnings about not using rpi-update on critical systems.
With the backlight control wired up, you need to use the magic sequence ofto enable the backlight.
See https://blog.microjoe.org/2019/hd44780- ... cial-codes for details of the other control sequences.
If you wish to test it, the "sudo rpi-update pulls/6293" should update your system with the test kernel build once complete in about 45mins time. Normal warnings about not using rpi-update on critical systems.
With the backlight control wired up, you need to use the magic sequence of
Code:
echo -e "\x1b[L+" > /dev/lcdSee https://blog.microjoe.org/2019/hd44780- ... cial-codes for details of the other control sequences.
Statistics: Posted by 6by9 — Thu Aug 01, 2024 5:40 pm