8821cu | Linux Driver for USB WiFi Adapters | Wifi library
kandi X-RAY | 8821cu Summary
kandi X-RAY | 8821cu Summary
Linux Driver for USB WiFi Adapters that are based on the RTL8811CU, RTL8821CU and RTL8731AU Chipsets
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8821cu Examples and Code Snippets
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QUESTION
I would like to add a wifi out-of-tree kernel module to my Yocto project. I found a layer on Open Embedded Layer Index with the driver that I need (https://layers.openembedded.org/layerindex/branch/master/layer/meta-rtlwifi/). I cannot build an image because I get the following error from bitbake
:
install: cannot stat 'build/tmp/work//rtl8821cu/5.8.1.2-git-r0/git/8821cu.ko': No such file or directory WARNING: exit code 1 from a shell command.
This file should be created by Makefile, but I have no errors generating by make
.
The recipe for the driver is as follows:
ANSWER
Answered 2021-Nov-11 at 02:07You have to replace SRCREV. Because as far as I can see, the SRCREV of the above recipe is using the old version. You can check "git log" and choose the latest commit. I used master branch and bitbake successfully.
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Vulnerabilities
No vulnerabilities reported
Install 8821cu
Fedora
Linux Mint
Manjaro
Raspberry Pi OS
Ubuntu
The installation instructions are for the novice user. Experienced users are welcome to alter the installation to meet their needs. Temporary internet access is required for installation. There are numerous ways to enable temporary internet access depending on your hardware and situation. One method is to use tethering from a phone. Another method to enable temporary internet access is to keep a wifi adapter that uses an in-kernel driver in your toolkit. You will need to use the terminal interface. The quick way to open a terminal: Ctrl+Alt+T (hold down on the Ctrl and Alt keys then press the T key). DKMS is used for the installation. DKMS is a system utility which will automatically recompile and install this driver when a new kernel is installed. DKMS is provided by and maintained by Dell. It is recommended that you do not delete the driver directory after installation as the directory contains information and scripts that you may need in the future. Note: There is no need to disable Secure Mode to install this driver. If Secure Mode is properly setup on your system, this installation will support it.
Step 1: Open a terminal (Ctrl+Alt+T). Step 2: Update the system (select the option for the OS you are using). Step 3: Install the required packages (select the option for the OS you are using). Note regarding Arch and Manjaro: if you are asked to choose a provider, make sure to choose the one that corresponds to your version of the linux kernel (for example, linux510-headers for Linux kernel version 5.10) if you install the incorrect version, you'll have to uninstall it and reinstall the correct version. Step 4: Create a directory to hold the downloaded driver. Step 5: Move to the newly created directory. Step 6: Download the driver. Step 7: Move to the newly created driver directory. Step 8: Warning: this step only applies if you are installing to Raspberry Pi hardware. Run a preparation script. Step 9: Run the installation script (For automated builds - for example an RPM package or an image - use NoPrompt as an option).
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