Danilo <dantard@...> writes:
>
> Hello,
> I figured out that the command:
>
> iw dev wlan0 set bitrates legacy-5 24
>
> has different behaviors in different devices.
>
> With iwl3945 wireless cards, it fixes the rate at 24Mbps ALSO for multicast
> frames while in iwl4965 cards, it doesn't.
>
> In both cases I tried with ubuntu linux 12.04 and kernel-3.2.0-32-generic
using
> iwl4965/iwl_legacy driver for 4965 and iwl3945/iwl_legacy driver for 3945.
>
> I've also tried with compat-wireless-3.6, same result.
>
> What's the expected behavior?
>
> Thanks in advance,
> D. Tardioli
>
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>
>
Hello,
I answer myself:
I've tried with ath5k-compatible card and it behaves like iwl3945.
It means that when fixed the bitrates with a single value, the card always use
that bitrate ALSO for broadcast frames.
The iwl4965 doesn't behave this way.
Any suggestion on how to solve the problem?
Regards.
On Thu, Dec 20, 2012 at 11:25 AM, Danilo <[email protected]> wrote:
> Danilo <dantard@...> writes:
>
>>
>> Hello,
>> I figured out that the command:
>>
>> iw dev wlan0 set bitrates legacy-5 24
>>
>> has different behaviors in different devices.
>>
>> With iwl3945 wireless cards, it fixes the rate at 24Mbps ALSO for multicast
>> frames while in iwl4965 cards, it doesn't.
>>
>> In both cases I tried with ubuntu linux 12.04 and kernel-3.2.0-32-generic
> using
>> iwl4965/iwl_legacy driver for 4965 and iwl3945/iwl_legacy driver for 3945.
>>
>> I've also tried with compat-wireless-3.6, same result.
>>
>> What's the expected behavior?
>>
>> Thanks in advance,
>> D. Tardioli
>>
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
>> the body of a message to majordomo@...
>> More majordomo info at http://vger.kernel.org/majordomo-info.html
>>
>>
>
> Hello,
> I answer myself:
> I've tried with ath5k-compatible card and it behaves like iwl3945.
> It means that when fixed the bitrates with a single value, the card always use
> that bitrate ALSO for broadcast frames.
>
> The iwl4965 doesn't behave this way.
> Any suggestion on how to solve the problem?
IIRC iwl4965 uses its own rate control algorithm (a while ago, it was
called "iwl-agn-rs", before the iwlegacy split). I think you should
look for the problem there.
--
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