dog hunter LLC CHIWAWA Benutzerhandbuch

How to activate a GPIO

To enable GPIO on linino.org board

homepsds-Mac-mini:~ federico$ ssh root@192.168.1.1
root@192.168.1.1's password: doghunter

BusyBox v1.19.4 (2013-01-04 11:35:48 CST) built-in shell (ash)
Enter 'help' for a list of built-in commands.

___ ___ ___ ___
/\__\ ___ /\__\ ___ /\__\ /\ \
/:/ / /\ \ /::| | /\ \ /::| | /::\ \
/:/ / \:\ \ /:|:| | \:\ \ /:|:| | /:/\:\ \
/:/ / /::\__\ /:/|:| |__ /::\__\ /:/|:| |__ /:/ \:\ \
/:/__/ __/:/\/__/ /:/ |:| /\__\ __/:/\/__/ /:/ |:| /\__\ /:/__/ \:\__\
\:\ \ /\/:/ / \/__|:|/:/ / /\/:/ / \/__|:|/:/ / \:\ \ /:/ /
\:\ \ \::/__/ |:/:/ / \::/__/ |:/:/ / \:\ /:/ /
\:\ \ \:\__\ |::/ / \:\__\ |::/ / \:\/:/ /
\:\__\ \/__/ /:/ / \/__/ /:/ / \::/ /
\/__/ \/__/ \/__/ \/__/

_______ ________ __
| |.-----.-----.-----.| | | |.----.| |_
| - || _ | -__| || | | || _|| _|
|_______|| __|_____|__|__||________||__| |____|

|__| W I R E L E S S F R E E D O M
-----------------------------------------------------
BARRIER BREAKER (Bleeding Edge, r35001)
-----------------------------------------------------
* 1/2 oz Galliano Pour all ingredients into
* 4 oz cold Coffee an irish coffee mug filled
* 1 1/2 oz Dark Rum with crushed ice. Stir.
* 2 tsp. Creme de Cacao
-----------------------------------------------------
root@linino:~#

root@linino:~# cd /sys/class/gpio/

root@linino:/sys/class/gpio# ls -l
--w------- 1 root root 4096 Jan 1 00:00 export
lrwxrwxrwx 1 root root 0 Jan 1 00:00 gpiochip0 -> (...)virtual/gpio/gpiochip0
--w------- 1 root root 4096 Jan 1 00:00 unexport

root@linino:/sys/class/gpio# echo 20 > export

root@linino:/sys/class/gpio# ls -l
--w------- 1 root root 4096 Jan 1 00:07 export
lrwxrwxrwx 1 root root 0 Jan 1 00:07 gpio20 -> (...)virtual/gpio/gpio20
lrwxrwxrwx 1 root root 0 Jan 1 00:00 gpiochip0 -> (...)virtual/gpio/gpiochip0
--w------- 1 root root 4096 Jan 1 00:00 unexport

root@linino:/sys/class/gpio# cd gpio20/