AW: Disable ratecontrol for ATH9K_HTC

[Steger, Marco]

Hi Pieter,

I'm using your fixed-rate-firmware since days and it really works great. Additionally it would be great to use the USB debugging functionality you invented. I understand that I will have to use the changed drivers/net/wireless/ath/ath9k/* src and your firmware. 

Can you shortly describe how I can use this to create a debug in dmesg? Would be great!

Best regards,
Marco



>-----Ursprüngliche Nachricht-----
>Von: Pieter Robyns [mailto:pieter.robyns at uhasselt.be]
>Gesendet: Sonntag, 15. März 2015 10:51
>An: Oleksij Rempel
>Cc: Steger, Marco; ath9k_htc_fw at lists.infradead.org
>Betreff: Re: Disable ratecontrol for ATH9K_HTC
>
>Hi all,
>
>I've created a fork of the firmware intended for experimental / research
>functionality such as fixing the data rate, disabling carrier sensing, convenient
>printing, etc. The repository is located here:
>https://github.com/rpp0/open-ath9k-htc-firmware.
>
>This modified firmware fixes the rate to a certain hardcoded value out of the box
>- no driver modification required. However, if you use my driver as well
>(https://github.com/rpp0/linux), there are some additional features which you
>can use, such as printing to dmesg over USB instead of over UART, setting the
>fixed rate with a userspace program, setting register values, etc.
>
>The driver uses netlink for communication with userspace instead of debugfs,
>because for some features I needed bidirectional communication. Currently you
>can only use the driver with one device at a time. I'll try to add some
>documentation and an example program that explains how to use the netlink
>interface today.
>
>Hopefully, this is useful to somebody!
>
>
>Kind regards,
>Pieter
>
>2015-03-15 7:57 GMT+01:00 Oleksij Rempel <linux at rempel-privat.de>:
>> Am 12.03.2015 um 10:28 schrieb Steger, Marco:
>>> Dear all,
>>>
>>> I'm planning some IEEE802.11s measurements using a TP-Link TL-WN722N
>stick on Debian (3.19). For that it would be great to disable the rate control of the
>ATH9K_HTC driver module (use a fixed bitrate). The iw command doesn't seem to
>work and as far as I understand, the ATH9k_HTC isn't using the minstrel algorithm
>located in MAC80211 module.
>>>
>>> Is there a way (command, flag, patch) to disable ratecontrol?
>>>
>>> Best regards,
>>> Marco
>>>
>>> Ps.: Please apologize if this was already asked before, but I wasn't
>>> able to open the archive of the mailing list via the homepage today
>>
>> Yea, this question is one of frequent :) This topic need work and we
>> have not enough map power. Every one who can work on it is really
>> welcome.
>>
>>>
>>> Dipl.-Ing. Marco Steger
>>> Junior Researcher
>>> Area Electrics/Electronics & Software (Area E)
>>>
>>> VIRTUAL VEHICLE
>>> Kompetenzzentrum - Das virtuelle Fahrzeug Forschungs-GmbH
>>>
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>>> Tel:        +43 316 873 9009
>>> E-Mail:     marco.steger at v2c2.at
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>>>
>>> Firmenname: Kompetenzzentrum - Das virtuelle Fahrzeug,
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>>> Rechtsform: Gesellschaft mit beschränkter Haftung
>>> Firmensitz: A-8010 Graz, Inffeldgasse 21/A
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>>>
>>>
>>>
>>> _______________________________________________
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>>>
>>
>>
>> --
>> Regards,
>> Oleksij
>>
>>
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