linux-kernel - Re: [PATCH net-next 1/2] ptp: introduce PTP_CLOCK_EXTOFF event for the measured external offset

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Message-ID: <20231128195811.06bd301d@kernel.org>
Date:   Tue, 28 Nov 2023 19:58:11 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     Min Li <lnimi@...mail.com>
Cc:     richardcochran@...il.com, lee@...nel.org,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        Min Li <min.li.xe@...esas.com>
Subject: Re: [PATCH net-next 1/2] ptp: introduce PTP_CLOCK_EXTOFF event for
 the measured external offset

On Mon, 27 Nov 2023 15:01:29 -0500 Min Li wrote:
> This change is for the PHC devices that can measure the phase offset
> between PHC signal and the external signal, such as the 1PPS signal of
> GNSS. Reporting PTP_CLOCK_EXTOFF to user space will be piggy-backed to
> the existing ptp_extts_event so that application such as ts2phc can
> poll the external offset the same way as extts. Hence, ts2phc can use
> the offset to achieve the alignment between PHC and the external signal
> by the help of either SW or HW filters.

Does not apply to net-next.
-- 
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