GPIOCTL(8)

NAME
gpioctl - GPIO control utility

SYNOPSIS
gpioctl [-f ctldev] -l [-v]
gpioctl [-f ctldev] [-pN] -t pin
gpioctl [-f ctldev] [-pN] -c pin flag [flag ...]
gpioctl [-f ctldev] [-pN] -n pin pin-name
gpioctl [-f ctldev] [-pN] pin [0|1]

DESCRIPTION
The gpioctl utility could be used to manage GPIO pins from userland and list available pins.

The pin argument can either be a pin-number or a pin-name. If it is a number and a pin has this number as its name and you did not use -N or -p , then gpioctl exits.

The options are as follows:

-c pin flag [flag ...]
    Configure pin by setting provided flags. The following flags are currently defined:

    IN  Input pin

    OUT Output pin

    OD  Open drain pin

    PP  Push pull pin

    TS  Tristate pin

    PU  Pull-up pin

    PD  Pull-down pin

    II  Inverted input pin

    IO  Inverted output pin

-f ctldev
    GPIO controller device to use If not specified, defaults to /dev/gpioc0

-l  list available pins

-n pin pin-name
    set the name used to describe the pin

-t pin
    toggle value of provided pin

-v  be verbose: for each listed pin print current configuration

-p  Force pin to be interpreted as a pin number

-N  Force pin to be interpreted as a pin name

EXAMPLES

•   List pins available on GPIO controller defined by device /dev/gpioc0

    gpioctl -f /dev/gpioc0 -l

•   Set the value of pin 12 to 1

    gpioctl -f /dev/gpioc0 12 1

•   Configure pin 12 to be input pin

    gpioctl -f /dev/gpioc0 -c 12 IN

•   Set the name of pin 12 to test

    gpioctl -f /dev/gpioc0 -n 12 test

•   Toggle the value the pin named test

    gpioctl -f /dev/gpioc0 -t test

•   Toggle the value of pin number 12 even if another pin has the name 12

    gpioctl -f /dev/gpioc0 -pt 12

SEE ALSO
gpio(4), gpioiic(4), gpioled(4)

HISTORY
The gpioctl utility appeared in FreeBSD 9.0.

AUTHORS
-nosplit The gpioctl utility and this manual page were written by Oleksandr Tymoshenko <gonzo@freebsd.org>.