1. please enter root login

rtwpriv wlan0 mp_start      //test start
rtwpriv wlan0 mp_channel 1
rtwpriv wlan0 mp_bandwidth 40M=0,shortGI=0
rtwpriv wlan0 mp_ant_tx a
rtwpriv wlan0 mp_rate 108
rtwpriv wlan0 mp_txpower patha=44,pathb=44
rtwpriv wlan0 mp_ctx background
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testing...
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iwpriv wlan0 mp_ctx stop     //test stop