I am trying to use cross compilation to build kernel for raspberry pi on my x86 laptop having manjaro. In the official Pi site ( https://www.raspberrypi.org/documentation/linux/kernel/building.md ) it is given to use arm-linux-gnueabihf-gcc as the preferred x-compiler. On using the I am getting this...

Don't I need to disable the default GPIO port addresses before using my custom made address? I am trying to build a driver to control GPIO pins. I am referring this link http://www.codeproject.com/Articles/1032794/Simple-I-O-device-driver-for-RaspberryPi and updated the PORT address to 3f000000. The...

Is there any way to un-map the GPIO ports of Raspberry Pi 2 B. I am trying to build a driver to control the GPIO pins using the GPIO registers. The GPIO ports are mapped to (from cat /proc/iomem) 3f200000-3f2000b3 : /soc/gpio@7e200000. Now I tried to create a new mapping from 3f000000-3f00003f, but ...

Hello, I am following http://www.codeproject.com/Articles/1032794/Simple-I-O-device-driver-for-RaspberryPi for building a small GPIO controlling driver for RPi 2 B+ model. I have build the kernel image again to add all header files and also updated the Pi kernel (sudo raspi-update). /lib/modules/4.4...

I am trying to get the gui by typing startx but it is throwing errors: X: user not authorized to run the X server, aborting. xinit: giving up xinit: unable to connect to X server: Connection refused xinit: server error Couldn't get a file descriptor referring to the console I have changed the Xorg X...