/dev/keypad0:

keypress sends a two-byte code.  byte 1 == key, 

byte2 == 0x00 (released) / 0x80 (pressed)

0x26	green
0x11	O<
0x27	red
0x02	1
0x03	2
0x04	3
0x05	4
0x06	5
0x07	6
0x08	7
0x09	8
0x0a	9
0x10	*
0x01	0
0x0f	#

0x28	voice recorder
0x23	camera

0x29	wheel up
0x2b	wheel down
0x2a	wheel push

0x1e	home

0x0b	joypad up
0x0c	joypad down
0x0d	joypad left
0x0e	joypad right
0x1d	joypad push