From: Ben Greear <greearb@candelatech.com>
To: Stefan Bruens <stefan.bruens@rwth-aachen.de>,
linux-wireless@vger.kernel.org
Subject: Re: Support of TX timestamps in kernel / by hardware
Date: Sun, 17 May 2015 09:29:42 -0700 [thread overview]
Message-ID: <5558C1F6.2010006@candelatech.com> (raw)
In-Reply-To: <5898815.03gqQSlLcY@pebbles.site>
On 05/17/2015 09:08 AM, Stefan Bruens wrote:
> Hi,
>
> I have looked through the individual hardware drivers, but there seems to be
> no way of getting an accurate time when an individual packet preamble hits the
> antenna.
>
> For RX, most drivers support a RX timestamp based on the TSF and put this into
> struct ieee80211_rx_status -> mactime. For TX, I found nothing related.
I guess a timestamp made in the driver when tx-status is given by the
firmware/hardware might be at least a good estimate.
Thanks,
Ben
--
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc http://www.candelatech.com
prev parent reply other threads:[~2015-05-17 16:29 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-17 16:08 Support of TX timestamps in kernel / by hardware Stefan Bruens
2015-05-17 16:29 ` Ben Greear [this message]
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