Use PlayStation 2 input accessories that cheap "PS2 to USB" dongles don't recognize by dumping gamepad input into UDP packets.

(Tested only on Linux)

0. Set up PS2SDK
1. Run make

• Set up OPL networking within OPL and save;
• Copy the ELF to somewhere accessible (e.g.: MC1:/APPS/JOYSRV.ELF);
• Configure FMCB shortcuts.

There must be a UDP listener at:

• Same IP as configured in OPL;
• The port for SMB in OPL plus 1024:
  • If you used the default port 445, it'll direct UDP towards port 1469.
• Capable of parsing and creating input in the system.

• ps2joycln

Expect 71 bytes per datagram. The last byte will always be a '\n'. Therefore looking like:

1006200079FFFF8080808000000000000000000000000000000000000000000000005A - DualShock 2

2002200041FFFF0000000000000000000000000000000000000000000000000000005A - 2011 generic Dance Mat

After converting the trimmed hex string into a ByteArray:

• 1st byte: where is the controller connected
  • 1st nibble: Controller connected to port 1 or 2
  • 2nd nibble: [unused] The slot of the multitap that the gamepad is connected to
• 2nd byte: Pad state. Usable if either 2 or 6; unusable otherwise (documentation on PAD_STATE_*)
• 3rd byte: Pad read status. Usable if non-zero; unusable otherwise (documentation on padRead())
• 4th to 35th byte: struct pad_button_status
  • 4th byte: u8 ok - zero is good
  • 5th byte: u8 mode - ???
  • 6th and 7th bytes: u16le btns - bit array for digital input for buttons; 1 = released, 0 = pressed.
    • The field itself stores little endian, but here I show big endian for clarity:
    • 0x0001 - 0b0000000000000001 - PAD_SELECT
    • 0x0002 - 0b0000000000000010 - PAD_L3
    • 0x0004 - 0b0000000000000100 - PAD_R3
    • 0x0008 - 0b0000000000001000 - PAD_START
    • 0x0010 - 0b0000000000010000 - PAD_UP
    • 0x0020 - 0b0000000000100000 - PAD_RIGHT
    • 0x0040 - 0b0000000001000000 - PAD_DOWN
    • 0x0080 - 0b0000000010000000 - PAD_LEFT
    • 0x0100 - 0b0000000100000000 - PAD_L2
    • 0x0200 - 0b0000001000000000 - PAD_R2
    • 0x0400 - 0b0000010000000000 - PAD_L1
    • 0x0800 - 0b0000100000000000 - PAD_R1
    • 0x1000 - 0b0001000000000000 - PAD_TRIANGLE
    • 0x2000 - 0b0010000000000000 - PAD_CIRCLE
    • 0x4000 - 0b0100000000000000 - PAD_CROSS
    • 0x8000 - 0b1000000000000000 - PAD_SQUARE
  • 8th byte: u8 rjoy_h - 00=left, FF=right, 80=neutral - Right analog stick
  • 9th byte: u8 rjoy_v - 00=up,__ FF=down,_ 80=neutral - Right analog stick
  • 10th byte: u8 ljoy_h - 00=left, FF=right, 80=neutral - Left analog stick
  • 11th byte: u8 ljoy_v - 00=up,__ FF=down,_ 80=neutral - Left analog stick
  • 12th byte: u8 right_p - Pressure senstivity for right directional - 00=released, FF=full pressure
  • 13th byte: u8 left_p - Pressure senstivity for left directional - 00=released, FF=full pressure
  • 14th byte: u8 up_p - Pressure senstivity for up directional - 00=released, FF=full pressure
  • 15th byte: u8 down_p - Pressure senstivity for down directional - 00=released, FF=full pressure
  • 16th byte: u8 triangle_p - Pressure senstivity for triangle - 00=released, FF=full pressure
  • 17th byte: u8 circle_p - Pressure senstivity for circle - 00=released, FF=full pressure
  • 18th byte: u8 cross_p - Pressure senstivity for cross - 00=released, FF=full pressure
  • 19th byte: u8 square_p - Pressure senstivity for circle - 00=released, FF=full pressure
  • 20th byte: u8 l1_p - Pressure senstivity for L1 - 00=released, FF=full pressure
  • 21th byte: u8 r1_p - Pressure senstivity for R1 - 00=released, FF=full pressure
  • 22th byte: u8 l2_p - Pressure senstivity for L2 - 00=released, FF=full pressure
  • 23th byte: u8 r2_p - Pressure senstivity for R2 - 00=released, FF=full pressure
  • 24th to 35th byte - ???