After the commit (that fixes the problems with ieee80211w)
https://github.com/lede-project/source/commit/609208597b6d18b0c1730f34685db73c859aa492
the tx power is always at 1mW.
With iwinfo phy0 txpower
it shows:
0 dBm ( 1 mW)
1 dBm ( 1 mW)
2 dBm ( 1 mW)
* 3 dBm ( 1 mW)
4 dBm ( 2 mW)
5 dBm ( 3 mW)
6 dBm ( 3 mW)
7 dBm ( 5 mW)
8 dBm ( 6 mW)
9 dBm ( 7 mW)
10 dBm ( 10 mW)
11 dBm ( 12 mW)
12 dBm ( 15 mW)
13 dBm ( 19 mW)
14 dBm ( 25 mW)
15 dBm ( 31 mW)
16 dBm ( 39 mW)
17 dBm ( 50 mW)
18 dBm ( 63 mW)
19 dBm ( 79 mW)
20 dBm ( 100 mW)
21 dBm ( 125 mW)
Also if I try with iw phy phy0 set txpower fixed 1500
nothing change.