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seemoo-lab / nexmon_csi

Channel State Information Extraction on Various Broadcom Wi-Fi Chips
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__nex_driver_io: run nexutil error on ASUS RT-AC86U #79

Closed yujianyuanhaha closed 4 years ago

yujianyuanhaha commented 4 years ago

Greetings,

I meet an error when execute ./nexutil -Ieth6 -s500 -b -l34 -vSTRING, where the STRING come from run ./makecsiparams -c 157/80 -C 1 -N 1 -m -b 0x88, then I see errror __nex_driver_io: error. I got one time it runs without error, and successfully got the .pcap data, I may miss some step to repeat that

Some other information:

  1. in ASUS-MERLIN configuration page, I manually pick 5GHz, channel 157, bandwidth 80M. which matches the output of ./nexutil -Ieth6 -k, and that of ./makecsiparams.
  2. I did turn the radio on by 
    wl -i eth6 up
wl -i eth6 radio on
ifconfig eth6 up
  3. I also change some other channel-bandwidth setting, like 2.4G channel 11 bandwidth 20MHz, or 5G channel 153 40MHz, but they also meet the error.

Let me know if I need to provide other information. @jlinktu @zeroby0

Best Regards.

BeeAndL commented 4 years ago

Need to reload nexmon_csi firmware after reboot your router.

zeroby0 commented 4 years ago

I see a -m with no parameter to it. Try removing it.

Also, make sure that 157/80 is an allowed channel in your country. Do you get error with 157/40?

Edit: What @YaohuaLee said is correct, and is most likely the reason you're getting the error.

yujianyuanhaha commented 4 years ago

thanks a lot, @YaohuaLee the reload did fix the problem. I can get packets now!

thanks @zeroby0 as well