MCP23017 with SqueezeAMP

[alidaf]

I'm having some trouble getting an expander to work and hope someone can offer some help.

I am using this Adafruit expander board.
It is connected via header J3 and I can detect it on the I2C bus at 0x20. I also have the interrupt connected to pin 8 on J6 (IO23) so my gpio_exp_config is model=mcp23017,addr=20,intr=23

I have tried setting up a rotary encoder for now using ENCA on pin 6, ENCB on pin 7 and COM connected to a GND pin on the expander board, so rotary_config is A=46,B=47 since the offset is 40.

I've tried other offsets as well but I get no response.

[alidaf]

Problem solved - address is hex but addr parameter needs decimal.

model=mcp23017,addr=32,intr=23