From: ZhenHua <zhen-hual@hp.com>
To: Alan Stern <stern@rowland.harvard.edu>
Cc: gregkh@linuxfoundation.org, linux-usb@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/1] usb,uhci: add a new tag for virtual uhci devices
Date: Mon, 01 Jul 2013 09:11:27 +0800 [thread overview]
Message-ID: <51D0D73F.2060401@hp.com> (raw)
In-Reply-To: <Pine.LNX.4.44L0.1306281018001.1047-100000@iolanthe.rowland.org>
On 06/28/2013 10:22 PM, Alan Stern wrote:
> On Fri, 28 Jun 2013, Li, Zhen-Hua (USL-China) wrote:
>
>> There was a problem, the warning "Controller not stopped yet".
>> And your last patch for this problem does a wrong thing:
>> It prevents all HP uhci devices from auto-stop, which make HP uhci
>> devices waste more
>> power.
> Do they really waste more power? Have you measured this?
>
> Is CONFIG_PM enabled in the kernel configuration?
>
>> This is another new problem.
>>
>> I think this should be corrected, so I want to apply it.
> In the last email, you said that your patch did not make the machine
> act different. Now you say that your patch makes the machine use less
> power. Which statement is correct?
>
> Alan Stern
>
Let's make it clear:
I said "I don't have a machine that this makes action different",
it does not mean my patch "did not make the machine act different ".
There are many kinds of machines, I have never said "my patch does
not make ALL of them act different".
next prev parent reply other threads:[~2013-07-01 1:12 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-26 6:29 [PATCH 1/1] usb,uhci: add a new tag for virtual uhci devices Li, Zhen-Hua
2013-06-26 19:17 ` Alan Stern
2013-06-27 1:17 ` Li, Zhen-Hua (USL-China)
2013-06-27 15:52 ` Alan Stern
2013-06-28 1:05 ` Li, Zhen-Hua (USL-China)
2013-06-28 14:22 ` Alan Stern
2013-07-01 1:11 ` ZhenHua [this message]
2013-07-01 14:29 ` Alan Stern
2013-07-24 22:50 ` Greg KH
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