From: Arend van Spriel <arend.vanspriel@broadcom.com>
To: Dan Kosek <daniel.kosek@gmail.com>, linux-wireless@vger.kernel.org
Subject: Re: iw scanning broken?
Date: Sat, 4 Aug 2018 21:19:30 +0200 [thread overview]
Message-ID: <5B65FC42.3010604@broadcom.com> (raw)
In-Reply-To: <C17ECAF6-E13C-40DB-A582-C9945D9BE7D7@gmail.com>
On 8/4/2018 3:08 PM, Dan Kosek wrote:
> If you enter the following command, you should get a single channel scan:
>
> sudo iw wlan0 scan freq 2412
>
> You do not. Instead you get a full (all) channels scan, which takes 3-5 seconds.
Do you have any logs to support that claim. Please note that the command
returns all BSS-es that are listed in wireless subsystem, ie. in
cfg80211. That includes BSS-es found in previous scans unless their
lifetime expired. What happens if you do...
$ sudo iw wlan0 scan freq 2412 flush
> This has been tested on Raspberry Pi Raspian 9 and Peppermint OS 7 ( Linux 4.4.0-53-generic #74-Ubuntu) with the same results.
>
> i believe iw is broken or some command knowledge is missing.
So what drivers are involved. Please include kernel logs.
Regards,
Arend
next prev parent reply other threads:[~2018-08-04 21:21 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-04 13:08 iw scanning broken? Dan Kosek
2018-08-04 19:19 ` Arend van Spriel [this message]
[not found] ` <0ED1D417-F3DA-41EC-BE23-B0D3F736D255@gmail.com>
2018-08-06 9:17 ` Arend van Spriel
[not found] ` <D466CC31-C56F-46F0-B189-2B10702701C6@gmail.com>
2018-08-08 2:25 ` Dan Kosek
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