But here is the deep horror: The Realtek driver for the 8188RU is structurally broken for injection. Realtek’s engineers write drivers for Windows compatibility and throughput , not for monitor mode fidelity. Their cfg80211 hooks are superficial.
It will not work out of the box. It will deauth itself. It will corrupt your monitor mode. And for one brief moment, after you compile the correct fork, blacklist the wrong modules, and set the USB quirk, you will see wlan0mon inject 300 packets per second. alfa wireless usb adapter 3001n driver
But the driver must manually toggle the GPIO pin that enables the external LNA. In r8712u , that GPIO toggle is commented out as a "TODO." In the aircrack-ng fork, it’s a hardcoded delay loop. The Alfa "3001n" is not a Wi-Fi adapter. It is a test of character. It forces you to understand the Linux USB stack, Realtek’s contempt for GPL compliance, and the fragile art of packet injection. But here is the deep horror: The Realtek