netdev - RE: SMSC 8720a/MDIO/PHY help.

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Message-ID: <9AC3F0E75060224C8BBC5BA2DDC8853A1FB1117D@EXV1.corp.adtran.com>
Date:	Fri, 15 Apr 2011 16:17:26 -0500
From:	ANDY KENNEDY <ANDY.KENNEDY@...ran.com>
To:	Andy Fleming <afleming@...il.com>
CC:	<michael@...sch.at>, <netdev@...r.kernel.org>
Subject: RE: SMSC 8720a/MDIO/PHY help.

> -----Original Message-----
> From: Andy Fleming [mailto:afleming@...il.com]
> Sent: Friday, April 15, 2011 4:02 PM
> To: ANDY KENNEDY
> Cc: michael@...sch.at; netdev@...r.kernel.org
> Subject: Re: SMSC 8720a/MDIO/PHY help.
> > Now, where is the document that explains all this.  The PHY
> document is very informative, however, if you don't know that a PHY
> is NOT a network device, you're kinda outta luck.  Even Wiki
> reports a PHY as the Physical Link layer of the OSI model.  Which,
> again, doesn't tell the ignorant much.
> 
> 
> Take a look at Documentation/networking/netdevices.txt
> 
> Also grep around in drivers/net to see networking drivers that have
> been ported to use phylib (look for phy_connect or phy_attach).

That's pretty much what I did.  After that, I was able (using my function stubs) to do an ifconfig eth0 and see that at least the kernel assigned my IP address to the device (though nothing else worked, but that was further than I was getting).

Like I said, I'm not completely ignorant anymore.  I look forward to the day (perhaps Monday) when I'm only half ignorant ;).

Thanks for your help!

Andy
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