[Libusb-devel] how to use function libusb_fill_interrupt_transfer(...)

[He.David <Dav...@IG...>]

Hi, Does anyone can help me to figure out why I got this compiler error? How to pass the call back function in this case?

void transfer_cb_fn (libusb_transfer* transfer){
  cout<<"call back function called"<<endl;
}

Void main(...){
...
  libusb_transfer* transfer;
  libusb_fill_interrupt_transfer (transfer, dev_handle, 129, data, 20, transfer_cb_fn,  user_data, 10000);

}

Error message:
error C2664: 'libusb_fill_interrupt_transfer' : cannot convert parameter 6 from 'void (__cdecl *)(libusb_transfer *)' to 'libusb_transfer_cb_fn'
2>        None of the functions with this name in scope match the target type



Thanks.

David