Not understanding keyboard values from V2DIP FTDI board

Question

I am working on V2DIP FTDI board. After flashing keyboard firmwares such as USBHOSTHidKDB, I'm getting keyboard values as follows:

0000040000000000 for 'a' key
0000050000000000 for 'b' key

and so on. Does anybody know what these values are? Please help me if you know this concept.

Answer 1

The USB HID usage table specifies the values for the key pressed, page 53 on "USB HID usage Table" (http://www.usb.org/developers/devclass_docs/Hut1_12v2.pdf).

Since you haven't give us much about the firmware and its' documentation I can only guess 04 and 05 represent a and b according to the usage table.