How to know the frequency of AP mode

[Ben Greear]

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 at candelatech.com>
Candela Technologies Inc  http://www.candelatech.com