Waveshare Touch keypad - Raspberry Pi Forums

hi guys, i'm building portable piboy http://www.waveshare.com/rpi-touch-keypad.htm. did waveshare's wiki (http://www.waveshare.com/wiki/libraries ... on_for_rpi), still cannot make run or configure.
have achieved this:
pi@retropie:~ $ i2cdetect -y 1
0 1 2 3 4 5 6 7 8 9 b c d e f
00: -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- 57 -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --
pi@retropie:~ $ i2cdetect -l 1
i2c-1 i2c 3f804000.i2c i2c adapter

pi@retropie:~ $ i2cdetect -f 1
functionalities implemented /dev/i2c-1:
i2c yes
smbus quick command yes
smbus send byte yes
smbus receive byte yes
smbus write byte yes
smbus read byte yes
smbus write word yes
smbus read word yes
smbus process call yes
smbus block write yes
smbus block read no
smbus block process call no
smbus pec yes
i2c block write yes
i2c block read yes


looks it's discoverable?
did of had / have experience i2c controllers retropie?
idea how make run?

regards

raspberrypi