These are the findings from reverse-engineering the keyboard LED protocol of
the Alienware m16 R2 from USB captures of Alienware Command Center controlling
keyboard lighting. All host-to-device AlienFX commands described here use HID
SET_REPORT (bRequest 0x09, bmRequestType 0x21) control transfers. The
controller tested here is VID:PID 0x0d62:0xd2b1, reporting as a "Darfon
Electronics Corp. Keyboard."
Every AlienFX report begins with byte 0xCC, a fixed outer report ID for