Hello, I have a TP-Link TL-WN725N 802.11n USB WiFi dongle, lsusb identifies it as ID 0bda:8176 Realtek Semiconductor Corp. RTL8188CUS 802.11n WLAN Adapter. It didn't work well with rtl8192cu (power management issue causing deauth after inactivity), https://github.com/pvaret/rtl8192cu-fixes made it work but it's deprecated. I tried rtl8xxxu, initially it didn't work (nothing happened) until I found out CONFIG_RTL8XXXU_UNTESTED wasn't enabled on my kernel, so I enabled it and recompiled. Per the note at https://elixir.bootlin.com/linux/latest/source/drivers/net/wireless/realtek/rtl8xxxu/Kconfig I am reporting that it works well so far. I'm currently using it on armel (SheevaPlug) with Debian stretch kernel 4.9.0-8-marvell (4.9.110-3+deb9u6) and config modified to enable CONFIG_RTL8XXXU_UNTESTED. I haven't tested with a more recent version or vanilla but I can if you're interested. Thanks for the work on this new driver!