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Dynamically change WiFi power on Omega2 LTE

  • Hi.

    I want to dynamically change the wifi antenna power to save battery. I try to set txpower to a lower value.

    I try to set it in /etc/config/wireless

    config wifi-iface 'ap'
    	option device 'radio0'
    	option mode 'ap'
    	option network 'wlan'
    	option ifname 'ra0'
    	option encryption 'psk2'
    	option key 'xxxxxxxx'
    	option disabled '0'
    	option txpower '20'
    	option ssid 'Omega-xxxx'

    But when i try to get the power info

    # winfo  ra0 info
    ra0       ESSID: "Omega-xxxx"
              Access Point: aa:bb:cc:dd:ee:ff
              Mode: Client  Channel: 1 (unknown)
              Tx-Power: unknown  Link Quality: unknown/100
              Signal: unknown  Noise: unknown
              Bit Rate: 150.0 MBit/s
              Encryption: unknown
              Type: wext  HW Mode(s): unknown
              Hardware: unknown [Generic WEXT]
              TX power offset: unknown
              Frequency offset: unknown
              Supports VAPs: no  PHY name: ra0

    There are not information in Tx-power field.
    From my laptop the wifi omega strength signal has no change.

    I have an Omega2 LTE.

    How dynamically change the antenna power?

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