+
+Note that the converter can host only USB "boot protocol" keyboard(6KRO) and not NKRO, it is possible to support NKRO keyboard but you will need to write HID report parser for that. Every NKRO keyboard can have different HID report and it is difficult to support all kind of NKRO keyboards in the market.
+
+
+
+Update
+------
+2014/12/11 Added Hub support(confirmed with HHKB pro2)
+
+
+
+Resource
+--------
+USB Host Sheild 2.0
+ https://www.circuitsathome.com/products-page/arduino-shields/usb-host-shield-2-0-for-arduino
+ https://www.circuitsathome.com/products-page/arduino-shields/usb-host-shield-for-arduino-pro-mini
+USB Host Sheild 2.0 source
+ https://github.com/felis/USB_Host_Shield_2.0
+Arduino USB Host Shield(with bootst converter)
+ http://arduino.cc/en/Main/ArduinoUSBHostShield
+Arduino source
+ https://github.com/arduino/Arduino/hardware/arduino/{cores,variants}
+Initial release of TMK USB-USB converter
+ https://geekhack.org/index.php?topic=33057.msg653549#msg653549
+ http://deskthority.net/workshop-f7/is-remapping-a-usb-keyboard-using-teensy-possible-t2841-30.html#p74854
+Arduino-based hardware keyboard remapper - Colemak forum
+ http://forum.colemak.com/viewtopic.php?id=1561
+Teensy + Host Shield
+ http://www.pjrc.com/teensy/td_libs_USBHostShield.html