Save some battery on WiFi, when you are sufficiently near from the hotspot.
Diminuer la puissance d’émission du WiFi pour économiser de la batterie quand la borne est suffisamment proche.
- via iwconfig
# iwconfig wlan0 txpower 5mW (1) (2)
1 | Instead of 130mW with a stock Intel WiFi card. It corresponds to 7dBm instead of 22dBm. |
2 | You may adjust the mW value based on your distance from the hotspot and the reported bit rate of the WiFi connexion. If the bit rate falls, you should set a higher wattage. |
- via iw
# iw dev wlan0 set txpower fixed 700 (1)
1 | Using the recent wireless drivers Linux kernel interface (work in progress since 2015). Unit is mBm (100 mBm = 1 dBm). |
To run the command at startup
Instructions are here : Run a command at startup.