The default support for EdiMax EW-7811UN is not working for EdiMax EW-7811UTC (a slightly bigger device, supposedly offers a better connection). I tried to install the driver from the vendor, but couldn’t get through the process.
Follow EdiMax’s guide https://www.edimax.com/edimax/mw/cufiles/files/download/QIG/EW-7811UTC/EW-7811UTC_QIG_English_EN.pdf
I downloaded and unpacked the driver package EW-7811UTC_UAC_DAC_USC_Linux_Driver_188.8.131.52/rtl8821AU_WiFi_linux_v5.3.4_28226.20180614_COEX20171103-6c6d
Then went into the directory to run a “sudo make”, but failed with an error:
Makefile:667: arch/aarch64/Makefile: No such file or directory
PS. “uname -a”
Linux jetson-4-3 4.9.140-tegra #1 SMP PREEMPT Mon Dec 9 22:47:42 PST 2019 aarch64 aarch64 aarch64 GNU/Linux