well, for some reasons folks at RPT have decided to implement an MCU on the display which deals with the backlight as well
backlight is part of the display_mcu (on old displays it was an ATtiny, maybe now it's an RP2040?) https://github.com/raspberrypi/linux/bl ... 7C5-L57C32 which has a compatible "raspberrypi,v2-touchscreen-panel-regulator" that brings you to https://github.com/raspberrypi/linux/bl ... egulator.c
As there is no documentation available in https://github.com/raspberrypi/linux/tr ... /regulator no further details - i.e. available PWM value range- is known.
What happens on a two finger tap?
Sorry, don't have an official V2 touch panel (and will not buy one because the optical characterics is pretty weak) so can't test myself.
backlight is part of the display_mcu (on old displays it was an ATtiny, maybe now it's an RP2040?) https://github.com/raspberrypi/linux/bl ... 7C5-L57C32 which has a compatible "raspberrypi,v2-touchscreen-panel-regulator" that brings you to https://github.com/raspberrypi/linux/bl ... egulator.c
As there is no documentation available in https://github.com/raspberrypi/linux/tr ... /regulator no further details - i.e. available PWM value range- is known.
What happens on a two finger tap?
Sorry, don't have an official V2 touch panel (and will not buy one because the optical characterics is pretty weak) so can't test myself.
Statistics: Posted by aBUGSworstnightmare — Fri Nov 08, 2024 12:52 pm