[PATCH] HID: Add support for 146b:0902 Bigben Interactive Kids' gamepad

Hello,

this is a driver for the "BigBen Interactive Kid-friendly Wired
Controller PS3OFMINIPAD SONY" [1] with USB id 146b:0902. It was
originally sold as a PS3 accessory and serves as a very nice gamepad for
Retropie.

With the help of serialusb [2], it was possible to analyze the protocol
used by the gamepad and fix the missing entries for the descriptor.


This is my *first* driver, so please review accordingly.


Three things where I'm not sure and hope to hear from you about:

- is that the correct use of hid_validate_values() in bigben_probe()?

- is the error handling in bigben_probe() correct?

- how do I properly test possible suspend/resume scenarios?

Thanks,

Hanno


[1]
<https://www.bigben-interactive.co.uk/bigben-products/gaming-accessories/wired-mini-controller-ps3>

[2] <https://github.com/matlo/serialusb>