I'm not sure I fully understood that but....
I have a PS2 controller and a PS3/PC adapter which maps the home button to the analog button for use on PS3. The only thing is that when plugged into a PC, I don't know what the analog button will actually do. But the PS2 buttons are all analogue I think, so I can record the HID report if you think it might be useful.
EDIT: OK, now I'm not so sure. My firewall/anti-virus says the uninstaller is a virus.:eek