Installation and Startup
Rev. 7 August 2021 37 41110485
Linux Interface Mapping
Linux Startup
The supported method of making changes to the Linux startup is to create a Legato
application. Changes or additions to the Linux scripts in /etc/rcS.d are not supported
by Sierra Wireless.
Reconfiguring the Firewall
For information about reconfiguring the firewall, see the Application Note FX30: Network
Interfaces and Firewall Rules (document number 41111930), available on the Source.
Managing the I/O Interface
To manage the I/O interfaces such as digital and analog I/Os, LEDs, push button, and
hardware settings driven by GPIO, you can use:
• AT commands (see Managing the I/O Interface with AT Commands on page 69)
• Linux shell commands (see FX30S Linux Interface and GPIO Mapping on page 77)
• Legato Application Framework
· To use existing Legato tools, see docs.legato.io/latest/tools.html
· If you are interested in building your own Legato apps, see
docs.legato.io/latest/getStarted.html
Legato Application Framework
Before building custom applications for the FX30S, you need to become familiar with
Legato. The best place to start is legato.io. Click the Build Apps icon. This section
contains:
• Concepts
Read the push button state cat /sys/class/gpio/gpio7/value
Read the analog input value (in µV) cat /sys/class/hwmon/hwmon0/device/mpp_05
Table 2-7: FX30S Interface Mapping to the Linux Interface
FX30S Interface Linux System
GPIOs /sys/class/gpio/gpioxx
Ethernet (FX30 only) eth0
a
a. eth0 has a default IP address of 192.168.13.31
USB usb0
b
b. usb0 is a network interface and has a default IP address of 192.168.2.2
Serial (FX30S only) /dev/ttyHSL0
Table 2-6: Linux shell command examples
To... Use...
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