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wifi card TP-Link 802.11ac WLAN Adapter
model: TP-Link 802.11ac WLAN Adapter(model id: 2242)
possible other names of the device:
Archer T2U Nano
AC600 Nano Wireless USB adapter
Realtek RTL8811AU
vendor:
TP-Link
VendorID:ProductID code of the device:
2357:011e
year of commercialization:
not-specified
interface:
USB
tested on:
Debian GNU/Linux 11 bullseye
GNU Guix System
Parabola GNU/Linux
tested with the following kernel libre:
5.13.13-gnu
5.15.41-gnu
does it work with free software?
no
free driver used:
Description:
kernel module: 88XXau (non-free)

Most recent realtek drivers have a non-free firmware as byte arrays in the C files. The files have GPL license headers; but the corresponding source code is apparently not available.

for example:
  • hal/rtl8812a/hal8812a_fw.c
(from sources: aircrack-ng / rtl8812au / rtl8812au-aircrack-ng / rtl8812au-ng)

Someone would need to liberate/replace those firmwares. The architecture of the CPU of these WiFi cihp is 8051; so it's already possible to de-compile the code with radare2, and we know the entry point.

Related entries:
  • https://h-node.org/wifi/view/en/2045/A6100-AC600-DB-Wireless-Adapter--Realtek-RTL8811AU-

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