netdev - Re: [PATCH] net: add regs attribute to phy device for user diagnose

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Message-ID: <1484476852.7461.4.camel@163.com>
Date:   Sun, 15 Jan 2017 18:40:52 +0800
From:   yuan linyu <cugyly@....com>
To:     Florian Fainelli <f.fainelli@...il.com>,
        Andrew Lunn <andrew@...n.ch>
Cc:     "David S . Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
        yuan linyu <Linyu.Yuan@...atel-sbell.com.cn>
Subject: Re: [PATCH] net: add regs attribute to phy device for user diagnose

On 六, 2017-01-14 at 17:57 -0800, Florian Fainelli wrote:
> Le 01/14/17 à 17:51, yuan linyu a écrit :
> > 
> > I think mii-tool or ethtool can't do it currently.
> Maybe they cannot right now but they can certainly be patched to support
> that. sysfs is not an appropriate interface for what you are proposing
> here. We already have a set/get register via ethtool (-d/-D) it would
> seem natural to use this.
I think most ethernet driver implement ethtool -d to dump mac register.

> 
> Besides that, are not the current ioctl() good enough for that?
I think user/developer diagnose through simple attribute file will be easy.