USB HID Parser for Joystick (VB and mcHID.dll )

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VB

USB

parsing

Hello ~
I've been studying a bit these days this really great library which is mcHID.dll (using this template in visual basic http://helmpcb.com/software/usb-hid-template-for-visual-basic-2005)

Actually i'm testing with different usb devices, and mainly joystick, and other exotic devices.
I'm just trying to build some custom software to use all of this in my way (i.e experimenting)

In the example of the joystick, i could get, VID, PID, etc... in order to connect and get the data
I also got its USB HID descriptor (like the one explained on this page http://helmpcb.com/electronics/usb-joystick)

I can connect to the device and get the value of BufferIn(0), BufferIn(1), etc...
But how to convert this data into the real value ?

Indeed how this : 00-BB-76-7F-8D-82-7C-35-7F-00-80-00-80-20-77 which is the event reported from my device, can be for example understood as pushing button 3, or moving the axis X and Y of 10.

I really understood that this should be formated using the USB description, but i cannot find anywhere any example showing this (with mcHID.dll + visual basic)

It would be really helpfull if someone can show me how to parse the data.

Thank you in advance !