Thanks, good to know. I have never tested my kernels on model A.Haven't tested it extensively yet, but can report that it does boot on Model A and B Pis (both v1 and v2 of the latter).
It's a kernel I have built myself: https://github.com/notro/rpi-firmware/b ... /README.mdWhich kernel did you use? The BETA ones?
I have added a kernel module that connects GPIO252 to the Linux backlight subsystem.I have the same problem with the backlight found with the kernel BETA:
I have used a different approach not involving a kernel module.It does not work even the Tactile switch as power button!
I have looked closer at the Adafruit power switch module. I see that it can also turn on the Pi. My solution can't do that.It does not work even the Tactile switch as power button!
$ sudo wget -P /lib/modules/$(uname -r)/extra/ tronnes.org/downloads/rpi_power_switch.ko
$ sudo depmod
$ modinfo rpi_power_switch
parm: gpio_pin:Switch gpio (int)
parm: led_pin:Indicator LED gpio (default: 16, ACT) (int)
parm: mode:Switch mode: 0-push button, 1-switch (default: push button) (int)
$ sudo modprobe rpi_power_switch gpio_pin=22 mode=0
$ dmesg | tail -1
[ 585.497778] Adafruit Industries' power switch driver v1.7
When touch suddenly stops working, it would helpful to know for sure that the touch controller has stopped generating interrupts, to rule out the possibility that Linux stops responding to those interrupts.What should I be checking for when scoping during a touch action?