Tp-Link TL-WN822N V5 [7/19] Download and install tools

2. Compile the Driver

Before you compile the driver, please make sure you have the correct compile tool and

kernel sources.

2.1. Compile Kernel source

Here we illustrate the instructions for local building to compile the driver for Linux.

2.1.1. Download and Install Tools

Note: Before local building, make sure your raspberrypi system is connected to the

internet.

Install Git, bc and other related tools.

$ sudo apt-get install git bc

2.1.2. Get Kernel source

Click the following links to download raspberrypi kernel source and other related tools.

https://github.com/raspberrypi/linux

https://github.com/raspberrypi/tools

Before local building, make sure if you need to update the kernel. If your adapter supports

the current kernel version, you don’t need to update the kernel, and just download the

kernel sources of this version. If you have to update the kernel, choose the kernel sources

of the desired version. Here we download the version 4.9 kernel sources.

Create Linux-src directory in the local user’s root directory to store kernel sources. If you

have installed Git, you can use Git to obtain Linux kernel sources from Github; if you

directly download the .zip file, use the following jar command to decompress this file.

$ sudo jar –xf XXX.zip

Note: It is recommended not to use the unzip software to decompress the .zip file.

2.1.3. Modify Kernel

Run the following commands to modify Linux kernel. You can also modify the kernel

according to your demands.

$ cd linux /* go the directory of kernel sources */

$ KERNEL=kernel7

$ make bcm2709_defconfig

Note: The instructions for Raspberry Pi3 and other versions of Raspberry are slightly

different, for details of other versions, please refer to the instructions on Raspberry official

website.

2.1.4. Compile the Kernel

Run the following commands to compile and install the kernel and related device tree. It