Eurotech REGATE-10-12-65G, Руководство пользователя

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ReliaGATE 10-12 User manual Rev. 2-1 12 How to manage interfaces in Linux
12 H
OW TO MANAGE INTERFACES IN
L
INUX
Interfaces availability depends on product version.
If Everyware Software Framework (ESF) is installed, it will manage the network interfaces, cellular
modem, Bluetooth adapter and GPIOs.
Any changes you make to the Linux configuration files may be overwritten if the related service is
managed by ESF.
Refer to the ESF documentation for more information.
12.1 How to drive the GPIOs: the GPIO Utility
Several ReliaGATE 10-12 interfaces are controlled by their GPIOs.
To manage these interfaces, drive their GPIOs by using the GPIO Utility:
gpio_utility
.
gpio_utility
allows you to:
l
Read / Write a GPIO status
l
Set a GPIO as input or output
l
Unexport a GPIO.
The GPIOs are exported by default at startup.
To read the GPIO status (for example: the status of LED 1), enter the following command:
gpio_utility gpio117
The output is as follows:
l
If LED 1 is ON, then
gpio117
= 1
l
If LED 1 is OFF, then
gpio117
= 0
To set the GPIO status (for example: the status of LED 1), enter the following commands:
#turn led on
gpio_utility gpio117 1
#turn led off
gpio_utility gpio117 0
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