ModeSwitch for the Pop'n Ultimate Controller

This is a binary meant to set the LightMode used by the Pop'n Controller. It is mostly useful for multi-boot frontends as it allows to switch to the correct mode before launching a game.

For ease of use I included a pre-compiled binary working on WinXP Embedded (for official Pop'n Music cabinet).

While the autohotkey version works perfectly on my computer I couldn't make it work on the BemaniPC. I'm still including it here as it provides a good basis for HID light control with simple scripts.

Usage

modeswitch.exe num

Where num can take the value

0 : Reactive mode (AC lighting simulation for emulators)

1 : HID only (original AC mode)

2 : Mixed (AC mode with lights from any button pressed)

3 : Invert (Like Mixed except ON is OFF and vice versa)

How it works

On the Pop'n Ultimate Controller firmware, HID report ID 5 is a 32bit bitfield :

bits 0 to 17 are the HID lamps.
bit 28 is the magic lightMode change request bit
bits 24 and 25 encode the requested lightMode if bit 28 is set

This binary opens the USB device whose path is written in devicepath.dat and sends the correct HID report.

The autohotkey version finds the path automatically based on VID=2341 and PID=003E.

How to retrieve devicepath (for the C version)

You can either go into windows device manager and look for the device path in the Arduino Due advanced properties, or the easiest way is to look at the value inside spicetools or bemanitools configuration files.

spicetools

open %appdata%/spicetools.xml, look for a "devid" value starting with \\?\HID#VID_2341&PID_003E

Note that you'll have to replace "&" occurrences by "&".

bemanitools

open %appdata%/DJHACKERS/pnm_v4_25.bin and look for a string starting with \\?\HID#VID_2341&PID_003E