Re: How to know the frequency of AP mode

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Try ethtool stats maybe?

That should work for at least some drivers.

Thanks,
Ben

On 11/20/2017 09:46 AM, Grégoire Gentil wrote:
My question is summarized here:

https://stackoverflow.com/questions/47398018/hostapd-how-to-know-the-frequency-of-ap-mode


"On Linux, I'm using hostapd in AP mode. In other words, the system is the hotspot.

I would like to know what is the frequency of the Wi-Fi via c code (or a bash script that I could translate to c code).

The following code which queries the kernel, only works in normal mode. It fails in AP mode.

ioctl(net_sock, SIOCGIWFREQ, &wrq);

In bash, I have tried:

iwconfig
iw dev

but it doesn't report the frequency of the Wi-Fi. Same problem: it only reports in normal mode when the system associates to a router but nothing in AP mode.

How can I query hostapd to know the frequency hostapd is using or is configured to use?"


Grégoire


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Ben Greear <greearb@xxxxxxxxxxxxxxx>
Candela Technologies Inc  http://www.candelatech.com

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