How to query GPIO Multiplexing configuration

[MClif]

Hi,

The following pages talk about GPIO Pin Multiplexing:

emutex.com/educational/76-intel-edison-gpio-pin-multiplexing-g

communities.intel.com/servlet/JiveServlet/download/250732-82668/gpio_mapping_color_14ww33.1.pdf

Question: is there a way to query/display what is already in /sys/class/gpio, etc, before using the echo commands to change things?

Regards,

Bill

[idata · Accepted solution]

Hi Bill,

Thanks for your interest in the Intel® Edison Platform. I was thinking how you could display all the GPIO configuration before using the echo command to change them, and you could create a script that query all the GPIO configurations, for example:

• Create the script

vi script.sh

• Make your script

echo

cat /sys/class/gpiocat /sys/class/gpio/gpio/directioncat /sys/kernel/debug/gpio_debug/gpio/current_pinmux…

• Set up permission on a Script

chmod u+x script.shThis might give you an idea to create the script and customize it to meet your needs. Hope this information helps, also, if you have any other question, don't hesitate to contact us back. Have a nice day! Regards,-Yermi A.

[MClif]

Hi Yermi,

Thanks for the information. It is so easy. I should have figured t out myself

Regards,

Bill