Centos 7 WiFi Driver in Thinkpad E480 (RTL 88210AC ADAPTER)

Hello All

Below is the two step process

Preparation of Machine

####################################################################

1)Update Linux (Using root access)

#yum update

2) Install Centos Development package

#yum group install "Development Tools"

The above need to be done for GCC compiler

Please find the reference link for more information

Link

3) Install kernel version higher than 4.11(required for the wifi package to run, (Using root access))

Checking Installed Kernel Version

uname -sr

# rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org

# yum install https://www.elrepo.org/elrepo-release-7.0-4.el7.elrepo.noarch.rpm (external link)

Once the repository has been enabled, you can use the following command to list the available kernel related packages:

# yum --disablerepo="*" --enablerepo="elrepo-kernel" list available

Next, install the latest mainline stable kernel:

# yum --enablerepo=elrepo-kernel install kernel-ml

Note:- Make sure you boot through this version of kernel after reboot.

Please find the reference link for more information

Link

4) Installation of kernel-devel packages for wifi packages. (need to be root)

As per the current scenario kernel would be updated to 4.19.2-1.el7.elrepo.x86_64.rpm, so kernel-devel need to be of the same version, which could be found from the following link

http://mirrors.mivocloud.com/elrepo/kernel/el7/x86_64/RPMS/

Please find the link below more information

Link

Install the version by the following command

#yum install kernel-devel package name

Note:- Kernal-devel packages need to be an of the same version of current version of the kernel

WiFi Installation

####################################################################

5) Worked solution (Requirements: kernel >=4.11) :

(UPD: In the latest release of endlessm you need kernel version 4.15)

Download driver directory from this repo: https://github.com/endlessm/linux/tree/master/drivers/net/wireless/rtl8821ce

You can do it through this link: https://minhaskamal.github.io/DownGit/#/home?url=https://github.com/endlessm/linux/tree/master/drivers/net/wireless/rtl8821ce

Unpack zip archive.

Goto unzip directory

Note: - Just for the below section you can refer to the following video from youtube after 7 minutes 29 sec

Link

vim Makefile

search TopDIR ?=

and comment that line and add the following line below it

export TopDIR ?= $(shell pwd), save the file.

Then run following command

make

sudo make install

sudo modprobe -a 8821ce

Please find the reference link below

Link