From: Benoit Papillault <benoit.papillault@free.fr>
To: Christian Lamparter <chunkeey@googlemail.com>
Cc: "David H. Lynch Jr." <dhlii@dlasys.net>, linux-wireless@vger.kernel.org
Subject: Re: ar9170-fw II
Date: Sun, 02 May 2010 09:47:17 +0200 [thread overview]
Message-ID: <4BDD2E05.40203@free.fr> (raw)
In-Reply-To: <201005012245.36589.chunkeey@googlemail.com>
Le 01/05/2010 22:45, Christian Lamparter a écrit :
> On Saturday 01 May 2010 20:23:26 David H. Lynch Jr. wrote:
>> I think I can tell you what I am supposed add - I need to be able
>> to provide userspace apps with precise timing information for each packet.
>> Since i am working on GPL'd code and the results are going to be
>> provided to third parties whatever I do is GPL'd too.
>
> if by precise timing you mean "exact mac time in TU/usecs when frame
> was received at the radio", then you might have a _problem_.
> You see, the firmware already receives fully packed frames from
> the MAC processor and only _forwards_ them all [as is] in
> one big DMA to the USB subsystem.
> (this is done in src/wlan.c handle_rx())
>
> So, unless the HW has a _magic_ flag to enable this capability...
> you are sort of screwed :-/.
I would love this feature as well. I have a device to test if that can
help. I share the feeling of Christian however... but maybe your
documentation says something about a special flag.
Regards,
Benoit
next prev parent reply other threads:[~2010-05-02 7:47 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-01 10:19 ar9170-fw II David H. Lynch Jr.
2010-05-01 17:19 ` Christian Lamparter
2010-05-01 18:23 ` David H. Lynch Jr.
2010-05-01 20:45 ` Christian Lamparter
2010-05-02 7:47 ` Benoit Papillault [this message]
2010-05-02 11:14 ` David H. Lynch Jr.
2010-05-02 12:52 ` Christian Lamparter
2010-05-02 13:47 ` David H. Lynch Jr.
2010-05-05 18:41 ` carl9170 1.0.5.1 David H. Lynch Jr.
2010-05-05 19:59 ` 2.6.34-rc6 pci bridge problems Christian Lamparter
2010-05-06 15:09 ` Bjorn Helgaas
2010-05-07 15:46 ` Bjorn Helgaas
2010-05-07 18:44 ` Christian Lamparter
2010-05-06 0:11 ` carl9170 1.0.5.1 Luis R. Rodriguez
2010-05-11 22:02 ` ar9170-fw II David H. Lynch Jr.
2010-05-11 23:27 ` Christian Lamparter
2010-05-21 7:50 ` carl9170 1.0.6 David H. Lynch Jr.
2010-05-21 21:35 ` carl9170 1.0.6 carl9170_tx_superdesc David H. Lynch Jr.
2010-05-21 22:55 ` Christian Lamparter
2010-05-22 1:09 ` David H. Lynch Jr.
2010-05-22 19:13 ` carl9170 1.0.9 David H. Lynch Jr.
2010-05-23 1:34 ` Christian Lamparter
2010-05-23 5:30 ` David H. Lynch Jr.
2010-05-23 6:30 ` carl9170 1.0.9.1 David H. Lynch Jr.
2010-05-03 21:39 ` ar9170-fw II Luis R. Rodriguez
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