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Let's code a Linux Driver - 20 Allocate and use Device Data
Let's code a Linux Driver - 20: Parsing from the device tree in a Linux Kernel Module
Let's code a Linux Driver - 19: Using GPIOs in a Device Tree Device Driver
Let's code a Linux Driver - 16: How to write a Linux Device Driver for a Device Tree Devices
Let's code a Linux Driver - 27: Misc device - The easy way to use device files in a LKM
Let's code a Linux Driver - 2 -Device Numbers and Files
Let's code a Linux Driver - 21 Easy device files with miscellaneous devices
Let's code a Linux Driver - 22 Userspace interface for a platform device driver
Let's code a Linux Driver - 15: Sending a signal from Kernel to Userspace
Let's code a Linux Driver - 16: The Poll callback in a Linux Kernel Module
Let's code a Linux Driver -  23: Dynamical memory management in a Linux Kernel Module
Let's code a Linux Driver - 28: Mutex exclusive access to shared resources