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
Thegpioctl 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:
-cpin flag [flag ...]- Configure pin by setting provided flags. The following flags are currently defined:
-fctldev- GPIO controller device to use If not specified, defaults to /dev/gpioc0
-l- list available pins
-npin pin-name- set the name used to describe the pin
-tpin- 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
HISTORY
The gpioctl utility appeared in
FreeBSD 9.0.
AUTHORS
The gpioctl utility and this manual page
were written by Oleksandr Tymoshenko
<gonzo@freebsd.org>.