linux-kernel - Re: [PATCH 3/3] dm9601: add support ethtool style utility

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Message-ID: <1457696013.3001.86.camel@decadent.org.uk>
Date:	Fri, 11 Mar 2016 11:33:33 +0000
From:	Ben Hutchings <ben@...adent.org.uk>
To:	Joseph Chang <joseph_chang@...icom.com.tw>,
	'Joseph CHANG' <josright123@...il.com>,
	'Peter Korsgaard' <jacmet@...site.dk>, netdev@...r.kernel.org,
	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/3] dm9601: add support ethtool style utility

On Fri, 2016-03-11 at 19:08 +0800, Joseph Chang wrote:
> I tested by
>  ./ethtool -E eth0 magic 0x9620 offset 0 length 3 value 0xf1 value 0xf2 value 0xf3
> 
> I think ethtool need [ value N ] for each byte (so need three "value xx" in above command line), 
> am I right?
> 
> Oh, I can see it goes wrong~ Thanks~
[...]

You can only pass one byte on the command line and that forces the
length to be 1.  To set multiple bytes, you need to provide them on
stdin instead.

Ben.

-- 
Ben Hutchings
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