How to configure the wireless wake-up function of the wireless network card under Linux

Wireless wake-onwireless wake-on-lan (WoWLAN or WoW) allows the Linux system to enter low power mode while keeping the wireless network card active and still connected to the hotspot. . This tutorial demonstrates how to enable WoWLAN / WoW mode on a Linux laptop or desktop computer with a wireless network card installed. Please note that not all wireless cards and Linux drivers support WoWLAN.

grammar

On Linux systems, you need to use the iw command to view and operate wireless devices and their configurations. Its format is:

 iw command
 iw [options] command

List all wireless devices and their functions

Enter the following command:

$ iw list
$ iw list | more
$ iw dev
phy#0
Interface wlp3s0
ifindex 3
wdev 0x1
addr 6c:88:14:ff:36:d0
type managed
channel 149 (5745 MHz)，width： 40 MHz， center1： 5755 MHz
txpower 15.00 dBm

Please note this phy0.

View the current status of wireless wake-up

Open the terminal and enter the following command to view the status of the wireless network:

$ iw phy0 wowlan show
WoWLAN is disabled

How to enable wireless wake-up

The enabled syntax is:

sudo iw phy {phyname} wowlan enable {option}

For example, I want to enable wireless wake-up for phy0:

$ sudo iw phy0 wowlan enable any
$ iw phy0 wowlan show

The result is:

WoWLAN is enabled：
* wake up on disconnect
* wake up on magic packet

How to disable wireless wake-up?

The syntax is:

$ sudo phy {phyname} wowlan disable
$ sudo phy0 wowlan disable

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