netdev - Re: Debugging Ethernet issues

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Date:   Mon, 14 Nov 2016 14:34:28 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Mason <slash.tmp@...e.fr>
Cc:     Florian Fainelli <f.fainelli@...il.com>,
        netdev <netdev@...r.kernel.org>, Mans Rullgard <mans@...sr.com>,
        Sergei Shtylyov <sergei.shtylyov@...entembedded.com>,
        Tom Lendacky <thomas.lendacky@....com>,
        Zach Brown <zach.brown@...com>,
        Shaohui Xie <shaohui.xie@....com>,
        Tim Beale <tim.beale@...iedtelesis.co.nz>,
        Brian Hill <brian@...ston-radar.com>,
        Vince Bridgers <vbridgers2013@...il.com>,
        Balakumaran Kannan <kumaran.4353@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Sebastian Frias <sf84@...oste.net>,
        Kirill Kapranov <kapranoff@...ox.ru>
Subject: Re: Debugging Ethernet issues

> How exactly does one use the generic PHY driver?

If there is no specific driver available for the PHY, linux will fall
back to the generic driver. So just don't compile the specific driver.
You can see under /sys/bus/mdio_bus/devices which driver is being
used.

	Andrew