[ath9k-devel] 802.11n support in ad-hoc mode?

[ath9k-devel] 802.11n support in ad-hoc mode?

[Jinsung Lee]

Hi, everyone.

 

I'm using ar9220 chipset and ath9k driver of compat-wireless-2009-10-28.

I'm trying to set 802.11n rate in ad-hoc mode.

Can the current driver support 802.11n rate in ad-hoc mode?

If possible, could you let me know how to set this rate?

Thanks.

 

--

Regards,

Jinsung Lee

--

 

 

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[ath9k-devel] 802.11n support in ad-hoc mode?

[Jinsung Lee]

Dear all,

 

I've found that ar9220 chipset cannot be supported by ath9k driver, am I
right?

In addition, the webpage: http://wireless.kernel.org/en/users/Devices/PCI is
showing that Compex WLM200NX device which has ar9220 chipset is supported by
ath9k.

I think it's not supported so far.

What do you think?

 

 

--

Regards,

Jinsung Lee

--

 

From: ath9k-devel-bounces@venema.h4ckr.net
[mailto:ath9k-devel-bounces at venema.h4ckr.net] On Behalf Of Jinsung Lee
Sent: Tuesday, November 03, 2009 5:11 PM
To: ath9k-devel at venema.h4ckr.net
Subject: [ath9k-devel] 802.11n support in ad-hoc mode?

 

Hi, everyone.

 

I'm using ar9220 chipset and ath9k driver of compat-wireless-2009-10-28.

I'm trying to set 802.11n rate in ad-hoc mode.

Can the current driver support 802.11n rate in ad-hoc mode?

If possible, could you let me know how to set this rate?

Thanks.

 

--

Regards,

Jinsung Lee

--

 

 

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[ath9k-devel] 802.11n support in ad-hoc mode?

[Matt Tierney]

ath9k does support ad-hoc mode (IBSS mode under Modes of Operation:
http://linuxwireless.org/en/users/Drivers/ath9k).

Use `iw` to change the mode (e.g., set your card to ad-hoc mode):
http://linuxwireless.org/en/users/Documentation/iw

Hopefully, that helps =)

On Tue, Nov 3, 2009 at 10:51 AM, Jinsung Lee <ljs@netsys.kaist.ac.kr> wrote:

>  Dear all,
>
>
>
> I?ve found that ar9220 chipset cannot be supported by ath9k driver, am I
> right?
>
> In addition, the webpage: http://wireless.kernel.org/en/users/Devices/PCIis showing that Compex WLM200NX device which has ar9220 chipset is supported
> by ath9k.
>
> I think it?s not supported so far.
>
> What do you think?
>
>
>
>
>
> --
>
> Regards,
>
> Jinsung Lee
>
> --
>
>
>
> *From:* ath9k-devel-bounces at venema.h4ckr.net [mailto:
> ath9k-devel-bounces at venema.h4ckr.net] *On Behalf Of *Jinsung Lee
> *Sent:* Tuesday, November 03, 2009 5:11 PM
> *To:* ath9k-devel at venema.h4ckr.net
> *Subject:* [ath9k-devel] 802.11n support in ad-hoc mode?
>
>
>
> Hi, everyone.
>
>
>
> I?m using ar9220 chipset and ath9k driver of compat-wireless-2009-10-28.
>
> I?m trying to set 802.11n rate in ad-hoc mode.
>
> Can the current driver support 802.11n rate in ad-hoc mode?
>
> If possible, could you let me know how to set this rate?
>
> Thanks.
>
>
>
> --
>
> Regards,
>
> Jinsung Lee
>
> --
>
>
>
>
>
> _______________________________________________
> ath9k-devel mailing list
> ath9k-devel at lists.ath9k.org
> https://lists.ath9k.org/mailman/listinfo/ath9k-devel
>
>
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[ath9k-devel] 802.11n support in ad-hoc mode?

[Luis R. Rodriguez]

On Tue, Nov 03, 2009 at 08:14:20AM -0800, Matt Tierney wrote:
> ath9k does support ad-hoc mode (IBSS mode under Modes of Operation: http://linuxwireless.org/en/users/Drivers/ath9k).

Yes indeed it does, and if you run into issues its a  bug.

> Use `iw` to change the mode (e.g., set your card to ad-hoc mode): http://linuxwireless.org/en/users/Documentation/iw

Indeed.

> I?ve found that ar9220 chipset cannot be supported by ath9k driver, am I right?

Wrong, AR9220 is an AR9280 single-chip dual band device but for PCI and it is supported.
The AR9223 is also supported as its also AR9280 single chip but single band for PCI.

See:

http://wireless.kernel.org/en/users/Drivers/ath9k/products/external

  Luis

[ath9k-devel] 802.11n support in ad-hoc mode?

[Jinsung Lee]

Oh, I didn't know that information of AR9220 chipset. 
As you said, it was my mistake.
Thanks, Luis.

Actually, what I'm really wondering is how to set the rate of 802.11n, but not the change of ad-hoc mode.
Is it possible to set the rate using "iw" command?


--
Regards,
Jinsung Lee
--


-----Original Message-----
From: Luis R. Rodriguez [mailto:lrodriguez at Atheros.com] 
Sent: Wednesday, November 04, 2009 1:25 AM
To: Matt Tierney
Cc: Jinsung Lee; ath9k-devel at venema.h4ckr.net
Subject: Re: [ath9k-devel] 802.11n support in ad-hoc mode?

On Tue, Nov 03, 2009 at 08:14:20AM -0800, Matt Tierney wrote:
> ath9k does support ad-hoc mode (IBSS mode under Modes of Operation: http://linuxwireless.org/en/users/Drivers/ath9k).

Yes indeed it does, and if you run into issues its a  bug.

> Use `iw` to change the mode (e.g., set your card to ad-hoc mode): http://linuxwireless.org/en/users/Documentation/iw

Indeed.

> I?ve found that ar9220 chipset cannot be supported by ath9k driver, am I right?

Wrong, AR9220 is an AR9280 single-chip dual band device but for PCI and it is supported.
The AR9223 is also supported as its also AR9280 single chip but single band for PCI.

See:

http://wireless.kernel.org/en/users/Drivers/ath9k/products/external

  Luis

[ath9k-devel] 802.11n support in ad-hoc mode?

[Luis R. Rodriguez]

On Tue, Nov 03, 2009 at 08:45:33AM -0800, Jinsung Lee wrote:
> Actually, what I'm really wondering is how to set the rate of 802.11n,

nl80211 currently does not offer a way to set the MCS rate manually.
Patches for this would be greatly welcomed though. However keep in
mind this is quite a bit of work through a generic interface as
no mac80211 generic rate control algorithm currently supports
MCS rates.

A simpler and quicker solution for now, if can't invest much time
into this, is to add a debugfs file entry for statically setting
the bitrate to an MCS rate only for ath9k on ath9k/debugfs.c

> Is it possible to set the rate using "iw" command?

Not yet, cfg80211/nl80211 need a bit of work for this to be done.

  Luis

[ath9k-devel] 802.11n support in ad-hoc mode?

[Jinsung Lee]

At this time, I'm setting the rate using "iwconfig" command.
It seems like it's working anyway.
Of course, at most 54Mbps.

But, isn't it a good way to configure something like mode and rate via
"iwconfig" command instead of "iw"?
I want to make this clear.
Thanks.


--
Regards,
Jinsung Lee
--


-----Original Message-----
From: Luis R. Rodriguez [mailto:lrodriguez at Atheros.com] 
Sent: Wednesday, November 04, 2009 2:30 AM
To: Jinsung Lee
Cc: Luis Rodriguez; 'Matt Tierney'; ath9k-devel at venema.h4ckr.net
Subject: Re: [ath9k-devel] 802.11n support in ad-hoc mode?

On Tue, Nov 03, 2009 at 08:45:33AM -0800, Jinsung Lee wrote:
> Actually, what I'm really wondering is how to set the rate of 802.11n,

nl80211 currently does not offer a way to set the MCS rate manually.
Patches for this would be greatly welcomed though. However keep in
mind this is quite a bit of work through a generic interface as
no mac80211 generic rate control algorithm currently supports
MCS rates.

A simpler and quicker solution for now, if can't invest much time
into this, is to add a debugfs file entry for statically setting
the bitrate to an MCS rate only for ath9k on ath9k/debugfs.c

> Is it possible to set the rate using "iw" command?

Not yet, cfg80211/nl80211 need a bit of work for this to be done.

  Luis

[ath9k-devel] 802.11n support in ad-hoc mode?

[Luis R. Rodriguez]

On Tue, Nov 03, 2009 at 09:43:20AM -0800, Jinsung Lee wrote:
> At this time, I'm setting the rate using "iwconfig" command.
> It seems like it's working anyway.
> Of course, at most 54Mbps.

iwconfig will let you set the rate for legacy rates, that is -- not MCS rates.

> But, isn't it a good way to configure something like mode and rate via
> "iwconfig" command instead of "iw"?

iwconfig is a legacy utility. If I were you I'd uninstall it and
try to learn to use iw properly. Nothing new will be added through
iwconfig any more. Using iwconfig is fine but do not expect to gain
new features. iwconfig knows nothing about 802.11n and it will remain
that way.

  Luis

[ath9k-devel] 802.11n support in ad-hoc mode?

[xxiao]

working on that(IBSS/HT/MCS) in my spare time, still no success. Probably I will try the debugfs approach you suggested. 

MCS-unaware is OK for IBSS only if it can do rate control at HT, but so far I could not achieve that, at least not reliably.

xxiao

--- On Tue, 11/3/09, Luis R. Rodriguez <mcgrof@gmail.com> wrote:

> From: Luis R. Rodriguez <mcgrof@gmail.com>
> Subject: Re: [ath9k-devel] 802.11n support in ad-hoc mode?
> To: austinxxh-ath9k at yahoo.com
> Cc: ath9k-devel at venema.h4ckr.net, "LAMBA Jaideep" <Jaideep.Lamba@alcatel-lucent.com>
> Date: Tuesday, November 3, 2009, 11:26 AM
> On Tue, Nov 3, 2009 at 9:06 AM, xxiao
> <austinxxh-ath9k@yahoo.com>
> wrote:
> > This is correct, current HT(high-throughput) is
> unsupported in ath9k, or any open source 11N driver as far
> as IBSS mode is concerned.
> 
> You're using MCS rates on IBSS?
> 
> ? Luis
> 

[ath9k-devel] 802.11n support in ad-hoc mode?

[Luis R. Rodriguez]

On Tue, Nov 3, 2009 at 9:06 AM, xxiao <austinxxh-ath9k@yahoo.com> wrote:
> This is correct, current HT(high-throughput) is unsupported in ath9k, or any open source 11N driver as far as IBSS mode is concerned.

You're using MCS rates on IBSS?

  Luis

[ath9k-devel] 802.11n support in ad-hoc mode?

[xxiao]

This is correct, current HT(high-throughput) is unsupported in ath9k, or any open source 11N driver as far as IBSS mode is concerned.

xxiao

--- On Tue, 11/3/09, LAMBA Jaideep <Jaideep.Lamba@alcatel-lucent.com> wrote:

> From: LAMBA Jaideep <Jaideep.Lamba@alcatel-lucent.com>
> Subject: Re: [ath9k-devel] 802.11n support in ad-hoc mode?
> To: ath9k-devel at venema.h4ckr.net
> Date: Tuesday, November 3, 2009, 10:57 AM
> >> ath9k does support ad-hoc
> mode (IBSS mode under Modes of Operation:
> http://linuxwireless.org/en/users/Drivers/ath9k).
> 
> >Yes indeed it does, and if you run into issues its
> a? bug.
> 
> What kind of transfer rates can one expect to get with
> ath9k and ad-hoc
> mode. Somewhere on the website I read HT (I believe this is
> 300 mbps
> transfer rates) is currently not supported in adhoc mode in
> ath9k. Is
> this correct ??
> 
> Thanks,
> Jaideep
> _______________________________________________
> ath9k-devel mailing list
> ath9k-devel at lists.ath9k.org
> https://lists.ath9k.org/mailman/listinfo/ath9k-devel
> 

[ath9k-devel] 802.11n support in ad-hoc mode?

[LAMBA Jaideep]

>> ath9k does support ad-hoc mode (IBSS mode under Modes of Operation:
http://linuxwireless.org/en/users/Drivers/ath9k).

>Yes indeed it does, and if you run into issues its a  bug.

What kind of transfer rates can one expect to get with ath9k and ad-hoc
mode. Somewhere on the website I read HT (I believe this is 300 mbps
transfer rates) is currently not supported in adhoc mode in ath9k. Is
this correct ??

Thanks,
Jaideep