Nvidia AVerMedia D115W - Page 36

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D115W Series User Manual https://www.avermedia.com/professional/
6. GPIO usage
(1) Output
$ sudo su
$ gpio_id=483
$ echo $gpio_id > /sys/class/gpio/export
$ cat /sys/kernel/debug/gpio | grep 483
# show gpio-483 PZ.05 status
$ gpio_index=PZ.05
$ echo out > /sys/class/gpio/$gpio_index/direction
$ echo 1 > /sys/class/gpio/$gpio_index/value # set HIGH
$ echo 0 > /sys/class/gpio/$gpio_index/value # set LOW
(2) Input
$ sudo su
$ gpio_id=483
$ echo $gpio_id > /sys/class/gpio/export
$ cat /sys/kernel/debug/gpio | grep 483
$ gpio_index=PZ.05
$ echo in > /sys/class/gpio/$gpio_index/direction
$ cat /sys/class/gpio/$gpio_index/value # 1: HIGH, 0: LOW
(3) Disable
$ sudo su
$ gpio_id=483
$ echo $gpio_id >/sys/class/gpio/unexport
For L4T (Linux for Tegra) BSP support and the other software support associated with
NVIDIA® Jetson Orin NX, please visit AVerMedia website to contact our technical support
function. (https://www.avermedia.com/tw/support/contact)