[Gumstix-users] how to use GPIO 147, 146, 170...

[Áramvadász <ara...@gm...>]

Dear Everybody,

I tried to use the method written int he Overo Kernel Usage on this 
website: http://wiki.gumstix.org/index.php?title=GPIO. I have listed the 
available GPIOs:

root@overo:/# ls /sys/class/gpio
export gpio15 gpio168 gpiochip160 gpiochip64
gpio144 gpio16 gpiochip0 gpiochip192 gpiochip96
gpio145 gpio164 gpiochip128 gpiochip32 unexport

However there are not here the GPIOs that are lined out in the 40 pin 
header. How can I reach those that are not in the list? I use this 
board: Chestnut43, and this screen: LG 4.3 inch LCD touch screen.

I’d like to use these GPIOs:
GPIO_10
GPIO_186
GPIO146_PWM11
GPIO147_PWM8
GPIO170_HDQ_1WIRE

And probably these:
GPIO166_IR_TXD3
GPIO165_IR_RXD3
GPIO163_IR_CTS3

Best regards:

Ferenc Kőszegi