Usb compound emumerated but joystick not visible[solved]

[NicolasC]

From the examples folder, I modify the ex_usb_kbmouse by replacing the mouse with a joystick (from ex_usb_hid).
This device is correctly enumerated by winXP but the joystick does not show up in the control panel joystick list.
Keystroke from the keyboard are correctly received by application.

Shall I think that my desciptor are Ok as I get enumerated ? In that case where should I look ?

Regards

[Douglas Kennedy]

First look in your registry
HKey_LOCAL_MACHINE> SYSTEM>ControlSet001>Enum>USB
your specific vid and pid should be there. An enumerated device is connected with its driver there via a GUID number.
See if your device manger has a device with a ? or a caution flag. It is likely that if you are truly enumerated that you haven't connected with a working driver. Enumeration is a bunch of descriptors exchanged with the OS if things go well you are allowed entry to the registry where it connects you with an existing driver or calls for a new driver to be installed.

[NicolasC]

You were right.
First when I changed in USB_CLASS_SPECIFIC_DESC the mouse with the joystick, I forgot to also update the interface descriptor (subclass code and protocol code )

I deleted the key in the registry and the reinstall did the trick

Thanks a lot for your help