diff --git a/README.md b/README.md
new file mode 100644
index 0000000..560e8a0
--- /dev/null
+++ b/README.md
@@ -0,0 +1,88 @@
+# RTL8812AU/21AU and RTL8814AU drivers
+# with monitor mode and frame injection
+
+## Make
+For building & installing the RTL8812AU driver with 'make' use
+```
+make
+make install
+```
+and for building & installing the RTL8814AU driver with 'make' use
+```
+make RTL8814=1
+make install RTL8814=1
+```
+
+## Notes
+Download
+```
+git clone -b v4.3.21 https://github.com/aircrack-ng/rtl8812au.git
+```
+Package / Build dependencies
+```
+sudo apt-get install build-essential
+sudo apt-get install linux-headers-`uname -r`
+```
+For setting monitor mode
+  1. Fix problematic interference in monitor mode. 
+  ```
+  airmon-ng check kill
+  ```
+  You may also uncheck the box "Automatically connect to this network when it is avaiable" in nm-connection-editor. This only works if you have a saved wifi connection.
+  
+  2. Set interface down
+  ```
+  sudo ip link set wlan0 down
+  ``` 
+  3. Set monitor mode
+  ```
+  sudo iw dev wlan0 set type monitor
+  ```
+  4. Set interface up
+  ```
+  sudo ip link set wlan0 up
+  ```
+For setting TX power (v4.3.21 branch only):
+```
+sudo iwconfig wlan0 txpower 30
+```
+or
+```
+sudo iw wlan0 set txpower fixed 3000
+```
+For Ubuntu 17.04 add the following lines
+```
+[device]
+wifi.scan-rand-mac-address=no
+```
+at the end of file /etc/NetworkManager/NetworkManager.conf and restart NetworkManager with the command:
+```
+sudo service NetworkManager restart
+```
+
+## Led Parameter
+```
+We've added the "realtek-leds.conf" in build directory, 
+with this you may change the leds to 
+"2: Allways On", "1: Normal" or "0: Allways Off" with placing the file in "/etc/modprobe.d/
+
+Manual modprobe will override this file if option value also included at the command line, e.g.,
+$ sudo modprobe -r 8812au
+$ sudo modprobe 8812au rtw_led_ctrl=1
+```
+
+## Credits
+```
+astsam - for the main work + monitor/injection support - https://github.com/astsam
+```
+
+## Other Sources
+```
+astsam     - https://github.com/astsam/rtl8812au
+gnab       - https://github.com/gnab/rtl8812au
+zebulon2   - https://github.com/zebulon2/rtl8812au
+paspro     - https://github.com/paspro/rtl8812au
+ulli-kroll - https://github.com/ulli-kroll/rtl8821au
+tpircher   - https://github.com/tpircher/rtl8814AU
+xxNull-lsk - https://github.com/xxNull-lsk/rtl8812AU
+```
diff --git a/os_dep/linux/usb_intf.c b/os_dep/linux/usb_intf.c
index 391873c..a314c37 100644
--- a/os_dep/linux/usb_intf.c
+++ b/os_dep/linux/usb_intf.c
@@ -164,8 +164,8 @@ static struct usb_device_id rtw_usb_id_tbl[] ={
 	{USB_DEVICE(0x07B8, 0x8812),.driver_info = RTL8812}, /* Abocom - Abocom */
 	{USB_DEVICE(0x2001, 0x3315),.driver_info = RTL8812}, /* D-Link - Cameo */
 	{USB_DEVICE(0x2001, 0x3316),.driver_info = RTL8812}, /* D-Link - Cameo */
-	{USB_DEVICE(0x13B1, 0x003f),.driver_info = RTL8812}, /* Linksys - WUSB6300 */
-	{USB_DEVICE(0x2357, 0x0101),.driver_info = RTL8812}, /* TP-Link - Archer T4U */
+	{USB_DEVICE(0x13B1, 0x003F),.driver_info = RTL8812}, /* Linksys - WUSB6300 */
+	{USB_DEVICE(0x2357, 0x0101),.driver_info = RTL8812}, /* TP-Link - Archer T4U AC1200 */
 	{USB_DEVICE(0x2357, 0x0103),.driver_info = RTL8812}, /* TP-Link - T4UH */
 	{USB_DEVICE(0x2357, 0x010D), .driver_info = RTL8812}, /* TP-Link - Archer T4U AC1300 */
 	{USB_DEVICE(0x2357, 0x010E), .driver_info = RTL8812}, /* TP-Link - Archer T4UH AC1300 */
@@ -176,6 +176,7 @@ static struct usb_device_id rtw_usb_id_tbl[] ={
  	{USB_DEVICE(0x050D, 0x1109), .driver_info = RTL8812}, /* Belkin F9L1109 - SerComm */
 	{USB_DEVICE(0x148F, 0x9097), .driver_info = RTL8812}, /* Amped Wireless ACA1 */
 	{USB_DEVICE(0x0BDA, 0x8812), .driver_info = RTL8812}, /* Alfa - AWUS036AC */
+	{USB_DEVICE(0x2604, 0x0012), .driver_info = RTL8812}, /* Tenda U12 */
 #endif
 
 #ifdef CONFIG_RTL8821A