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diederikdehaas / rtl8812AU

Realtek 8812AU USB WiFi driver
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Cannot compile on the BeagleBoard X15 #118

Closed casualb1t closed 4 years ago

casualb1t commented 5 years ago

I'm installing an Alfa AC usb wifi adapter on a BeagleBoard X15. The Alfa website specifies that the device uses the RTL8812AU drivers.

After pulling the repo, updating the Makefile to use the 'Raspberry Pi' settings (ie. CONFIG_PLATFORM_ARM_RPI = y), and running through the commands provided in the readme, I got the following error on the 'dkms build...' step:

Error! Your kernel headers for kernel 4.14.49-ti-r54 cannot be found.

...the fix for that was to install the BeagleBoard kernel headers with the following command: sudo apt-get install linux-headers-$(uname -r)

Once the headers were installed (and verified with: "dpkg -L linux-headers-$(uname -r)"), I ran the build command again... dkms build -m ${DRV_NAME} -v ${DRV_VERSION} ...and got the following error:

Kernel preparation unnecessary for this kernel.  Skipping...

Building module:
cleaning build area...
'make' KVER=4.14.49-ti-r54...(bad exit status: 2)
Error! Bad return status for module build on kernel: 4.14.49-ti-r54 (armv7l)
Consult /var/lib/dkms/rtl8812AU/4.3.20/build/make.log for more information.

Turns out, on the BeagleBoard, the linux headers create a /usr/src/linux-headers.../arch/arm folder, but the drivers here expect a /usr/src/.../arch/armv7l folder.

If this happens, you can get around the issue by simply creating a symlink: ln -s /usr/src/linux-headers-4.14.49-ti-r54/arch/arm /usr/src/linux-headers-4.14.49-ti-r54/arch/armv7l

Re-run the build step and it should work fine! Once the install command is run, log out and log back in and run iwconfig to see the wifi device show up as an interface.

casualb1t commented 5 years ago

Would it be possible to implement a fix so that the BeagleBoard is a supported platform?

diederikdehaas commented 5 years ago

the drivers here expect a /usr/src/.../arch/armv7l folder

I've recently pushed some updates, could you try again if the problem still exists? When I do make on a RPi3B with kernel Linux rasppi-3b 4.19.58-v7+ #1245 SMP Fri Jul 12 17:25:51 BST 2019 armv7l GNU/Linux, it works.

casualb1t commented 4 years ago

Thanks! Works great.