This is a simple modular driver for the Raspberry PI 3B that implements the usage of GPIO to interface with an external module.
To compile the driver module run make in the build directory.
To load the driver module using the provided script use the following command:
sudo sh gpiodriverRun.sh 1 0
To enable tail output set the second parameter to '1'
sudo sh gpiodriverRun.sh 1 1
To load the driver module without the use of the script use the following command:
sudo nsmod GpioDriverMod.ko
To unload the driver module using the provided script use the following command:
sudo sh gpiodriverRun.sh 2 0
To enable tail output set the second parameter to '1'
sudo sh gpiodriverRun.sh 2 1
To load the driver module without the use of the script use the following command:
sudo rmmod GpioDriverMod.ko
The list of possible input/parameter combinations for the script are as follows:
sudo sh gpiodriverRun.sh x y
- Parameter 1 (x):
- 0 : dmesg
- 1 : Load module
- 2 : Unload module
- 3 : Load and unload moule
- Parameter 2 (y):
- 0 : desable tail
- 1 : enable tail
The above list can be obtained by running the following command:
sudo sh gpiodriverRun.sh
To load the driver and generate the driver file automatically run the following command in the build directory.
sudo make install
To unload the driver and remove the driver file automatically run the following command in the build directory.
sudo make uninstall
In order to compile and work with drivers it is required to ensure that the Kernel headers are installed. This can be done by following the steps in the guide provided in the below link.
https://www.tecmint.com/install-kernel-headers-in-ubuntu-and-debian/