linux-kernel - Re: General questiin about SYSFS

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Message-ID: <20100514071905.GB5612@cr0.nay.redhat.com>
Date:	Fri, 14 May 2010 15:19:05 +0800
From:	Américo Wang <xiyou.wangcong@...il.com>
To:	Piotr Hosowicz <piotr@...owicz.com>
Cc:	Randy Dunlap <rdunlap@...otime.net>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: General questiin about SYSFS

On Fri, May 14, 2010 at 03:52:03AM +0200, Piotr Hosowicz wrote:
>On 13.05.2010 21:28, Randy Dunlap wrote:
>>Piotr Hosowicz wrote:
>>>On 13.05.2010 20:55, Piotr Hosowicz wrote:
>>>
>>>>I could find the option in menuconfig and I don't want to edit .config
>>>>by hand, because there are various *SYSFS* options there.
>>>
>>>Sorry, I mistyped, I meant I _cannot_ find it in menuconfig nor in .config.
>>
>>The only thing about  SYSFS that is deprecated AFAIK is in init/Kconfig:
>>
>>config SYSFS_DEPRECATED_V2
>>	bool "enable deprecated sysfs features to support old userspace tools"
>>	depends on SYSFS
>>	default n
>>	select SYSFS_DEPRECATED
>>	help
>>	  This option switches the layout of sysfs to the deprecated
>>	  version. Do not use it on recent distributions.
>
>Thanks, I have it disabled. I asked tyhe question because of such
>messages during boot:
>
>May 13 16:26:24 aapi205 udevd[1432]: SYSFS{}= will be removed in a
>future udev version, please use ATTR{}= to match the event device, or
>ATTRS{}= to match a parent device, in
>/etc/udev/rules.d/025_logitechmouse.rules:21
>

It is a warning for udev rules, that is saying you should replace
SYSFS{}= with ATTR{}= in your rule file under /etc/udev/rules.d/,
nothing related with kernel.

Thanks.
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