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**NHervé** · January 12th, 2008

I noticed SDL only encapsulates WinMM apis for Win32. I'm thinking about writing a lib which would use UsbHidApi.dll, which makes HID communications simpler, to get a better plugin. I found the protocol of my joystick by using a UsbHidApi demo, from packet values. Here is the protocol of my joystick, Logitech Cordless Rumblepad 2 :

Code:

Bit |Val|Expl.
0   |01 |REport ID
1   |80 |Left X (axis 1)
2   |7f |Left Y (axis 2)
3   |7f |Right X (axis 3)
4   |80 |Right Y (axis 4)
5   |08 |Hi : buttons 0-4, Lo : POV
6   |00 |Buttons 5-12
7   |02 |Mode : 02 : normal, 0a : reverse POV and left axis

note : value can vary

POV :
0 : up
1 : up-right
2 : right
3 : down-right
4 : down
5 : down-left
6 : left
7 : up-left
8 : centered

January 12th, 2008	#141 (permalink)
NHervé Plugin author Join Date: Jul 2007 Location: Nulle part Posts: 504	I noticed SDL only encapsulates WinMM apis for Win32. I'm thinking about writing a lib which would use UsbHidApi.dll, which makes HID communications simpler, to get a better plugin. I found the protocol of my joystick by using a UsbHidApi demo, from packet values. Here is the protocol of my joystick, Logitech Cordless Rumblepad 2 : Code: Bit \|Val\|Expl. 0 \|01 \|REport ID 1 \|80 \|Left X (axis 1) 2 \|7f \|Left Y (axis 2) 3 \|7f \|Right X (axis 3) 4 \|80 \|Right Y (axis 4) 5 \|08 \|Hi : buttons 0-4, Lo : POV 6 \|00 \|Buttons 5-12 7 \|02 \|Mode : 02 : normal, 0a : reverse POV and left axis note : value can vary POV : 0 : up 1 : up-right 2 : right 3 : down-right 4 : down 5 : down-left 6 : left 7 : up-left 8 : centered __________________ No pity for n00bs here !