netdev - Re: [RFC net-next 4/7] net: add ioctl interface for recover reference clock on netdev

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Date:   Sat, 21 Aug 2021 18:25:52 -0700
From:   Richard Cochran <richardcochran@...il.com>
To:     Arkadiusz Kubalewski <arkadiusz.kubalewski@...el.com>
Cc:     linux-kernel@...r.kernel.org, intel-wired-lan@...ts.osuosl.org,
        netdev@...r.kernel.org, linux-kselftest@...r.kernel.org,
        jesse.brandeburg@...el.com, anthony.l.nguyen@...el.com,
        davem@...emloft.net, kuba@...nel.org, shuah@...nel.org,
        arnd@...db.de, nikolay@...dia.com, cong.wang@...edance.com,
        colin.king@...onical.com, gustavoars@...nel.org
Subject: Re: [RFC net-next 4/7] net: add ioctl interface for recover
 reference clock on netdev

On Mon, Aug 16, 2021 at 06:07:14PM +0200, Arkadiusz Kubalewski wrote:

> +/*
> + * Structure used for passing data with SIOCSSYNCE and SIOCGSYNCE ioctls
> + */
> +struct synce_ref_clk_cfg {
> +	__u8 pin_id;

How can the user know what values of 'pin_id' are valid and useful?

> +	_Bool enable;
> +};

Thanks,
Richard