From mboxrd@z Thu Jan  1 00:00:00 1970
From: <bogus@does.not.exist.com>
Date: Sun, 15 Sep 2013 09:49:13 -0000
Subject: No subject
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To: ath9k-devel@lists.ath9k.org

timestamp.

The question is, how accurated this timestamp is? The precision is in
nanoseconds, but what accuracy i can expect?

My main need is the implement a good precision TDOA algorithm.

I don't know jack about driver development, but is something that interests
me. If the accuracy is low, can i improve it in driver or firmware?
If its possible, i can even trade reception packet speed for a better
accuracy in timestamp.

The other question is, what is the difference between the ath9k_htc and
carl9170 drivers? Both support the AR9287 (from the debian wiki).

Thanks for all

Links:

Wireshark community:
http://ask.wireshark.org/questions/28683/recommended-wireless-adapter-usb-with-linux-wireshark-that-reports-mactime-in-radiotap-header

Debian Wiki ath9k_htc: https://wiki.debian.org/ath9k_htc

Debian Wiki carl9170: https://wiki.debian.org/carl9170

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<div dir=3D"ltr">Hi,<div><br></div><div>I have one question about hardware =
timestamp in Atheros chipsets.</div><div>From a post in Wireshark community=
, the chipset AR9287 can do hardware timestamp.</div><div><br></div><div>Th=
e question is, how accurated this timestamp is? The precision is in nanosec=
onds, but what accuracy i can expect?</div>

<div><br></div><div>My main need is the implement a good precision TDOA alg=
orithm.=A0</div><div><br></div><div>I don&#39;t know jack about driver deve=
lopment, but is something that=A0interests me. If the accuracy is low, can =
i improve it in driver or firmware?=A0</div>

<div>If its possible, i can even trade reception packet speed for a better =
accuracy in timestamp.</div><div><br></div><div>The other question is, what=
 is the difference between the ath9k_htc and carl9170 drivers? Both support=
 the AR9287 (from the debian wiki).</div>

<div><br></div><div>Thanks for all</div><div><br></div><div>Links:</div><di=
v><br></div><div>Wireshark community: <a href=3D"http://ask.wireshark.org/q=
uestions/28683/recommended-wireless-adapter-usb-with-linux-wireshark-that-r=
eports-mactime-in-radiotap-header">http://ask.wireshark.org/questions/28683=
/recommended-wireless-adapter-usb-with-linux-wireshark-that-reports-mactime=
-in-radiotap-header</a></div>

<div><br></div><div>Debian Wiki ath9k_htc:=A0<a href=3D"https://wiki.debian=
.org/ath9k_htc">https://wiki.debian.org/ath9k_htc</a></div><div><br></div><=
div>Debian Wiki carl9170:=A0<a href=3D"https://wiki.debian.org/carl9170">ht=
tps://wiki.debian.org/carl9170</a></div>

</div>

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