From: Stanislaw Gruszka <sgruszka@redhat.com>
To: Qian Li <qian.li@uhasselt.be>
Cc: linux-wireless@vger.kernel.org
Subject: Re: iwl3945
Date: Fri, 18 Apr 2014 08:11:35 +0200 [thread overview]
Message-ID: <20140418061135.GA1647@redhat.com> (raw)
In-Reply-To: <CAGAvgFun5q1-qdqzx3nxzpZAXyqY60xycgrF56p6qz5ryAJiwQ@mail.gmail.com>
On Thu, Apr 17, 2014 at 08:11:03PM +0200, Qian Li wrote:
> I run into some problems while I was using Intel Wireless 3945ABG WNIC to
> do some routing experiments. I've been using Ubuntu 12.04. The default WNIC
> driver is iwl3945. I could set essid, IP address, and mode of the NIC. But
> I can't switch to all the channels. I want the computer to be able to
> switch to any 5GHZ band channel in the Ad-Hoc mode. But the WNIC could only
> be switched to certain channels (e.g., 40, 44, 48) after it is set to the
> Ad-Hoc mode (it can be switched to any channel when it is in the Managed
> mode). When I tried to switch to other channels (e.g. 42, 46, 100, 124,
> etc.), I got errors such as "invalid argument".
Use "iw phy" to check on which channels IBSS is allowed on your device.
Most likely all 5GHz channels are disallowed.
For example I have:
$ iw phy | grep "no IBSS"
* 2467 MHz [12] (15.0 dBm) (passive scanning, no IBSS)
* 2472 MHz [13] (15.0 dBm) (passive scanning, no IBSS)
* 5180 MHz [36] (15.0 dBm) (passive scanning, no IBSS)
* 5200 MHz [40] (15.0 dBm) (passive scanning, no IBSS)
* 5220 MHz [44] (15.0 dBm) (passive scanning, no IBSS)
* 5240 MHz [48] (15.0 dBm) (passive scanning, no IBSS)
* 5260 MHz [52] (15.0 dBm) (passive scanning, no IBSS, radar detection)
* 5280 MHz [56] (15.0 dBm) (passive scanning, no IBSS, radar detection)
* 5300 MHz [60] (15.0 dBm) (passive scanning, no IBSS, radar detection)
* 5320 MHz [64] (15.0 dBm) (passive scanning, no IBSS, radar detection)
* 5500 MHz [100] (15.0 dBm) (passive scanning, no IBSS, radar detection)
* 5520 MHz [104] (15.0 dBm) (passive scanning, no IBSS, radar detection)
* 5540 MHz [108] (15.0 dBm) (passive scanning, no IBSS, radar detection)
* 5560 MHz [112] (15.0 dBm) (passive scanning, no IBSS, radar detection)
* 5580 MHz [116] (15.0 dBm) (passive scanning, no IBSS, radar detection)
* 5600 MHz [120] (15.0 dBm) (passive scanning, no IBSS, radar detection)
* 5620 MHz [124] (15.0 dBm) (passive scanning, no IBSS, radar detection)
* 5640 MHz [128] (15.0 dBm) (passive scanning, no IBSS, radar detection)
* 5660 MHz [132] (15.0 dBm) (passive scanning, no IBSS, radar detection)
* 5680 MHz [136] (15.0 dBm) (passive scanning, no IBSS, radar detection)
* 5700 MHz [140] (15.0 dBm) (passive scanning, no IBSS, radar detection)
Stanislaw
next parent reply other threads:[~2014-04-18 6:12 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CAGAvgFun5q1-qdqzx3nxzpZAXyqY60xycgrF56p6qz5ryAJiwQ@mail.gmail.com>
2014-04-18 6:11 ` Stanislaw Gruszka [this message]
2014-04-18 6:20 ` iwl3945 Krishna Chaitanya
2008-07-21 13:29 iwl3945 Karol Szkudlarek
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20140418061135.GA1647@redhat.com \
--to=sgruszka@redhat.com \
--cc=linux-wireless@vger.kernel.org \
--cc=qian.li@uhasselt.be \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).