Skip site navigation (1)Skip section navigation (2)

FreeBSD Manual Pages


home | help
GPIOCTL(8)		  BSD System Manager's Manual		    GPIOCTL(8)

     gpioctl --	GPIO control utility

     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]

     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

     -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

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

	 gpioctl -f /dev/gpioc0	-l

     o	 Set the value of pin 12 to 1

	 gpioctl -f /dev/gpioc0	12 1

     o	 Configure pin 12 to be	input pin

	 gpioctl -f /dev/gpioc0	-c 12 IN

     o	 Set the name of pin 12	to test

	 gpioctl -f /dev/gpioc0	-n 12 test

     o	 Toggle	the value the pin named	test

	 gpioctl -f /dev/gpioc0	-t test

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

	 gpioctl -f /dev/gpioc0	-pt 12

     gpio(4), gpioiic(4), gpioled(4)

     The gpioctl utility appeared in FreeBSD 9.0.

     The gpioctl utility and this manual page were written by Oleksandr
     Tymoshenko	<>.

BSD				 June 6, 2018				   BSD


Want to link to this manual page? Use this URL:

home | help