linux-kernel - Re: [PATCH v9 6/7] PCI: document SR-IOV sysfs entries

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Message-ID: <20090218062116.GA20081@kroah.com>
Date:	Tue, 17 Feb 2009 22:21:16 -0800
From:	Greg KH <greg@...ah.com>
To:	Yu Zhao <yu.zhao@...el.com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v9 6/7] PCI: document SR-IOV sysfs entries

On Tue, Feb 17, 2009 at 10:43:03PM +0800, Yu Zhao wrote:
> On Wed, Feb 18, 2009 at 11:49:10AM +0800, Greg KH wrote:
> > On Tue, Feb 17, 2009 at 08:50:21PM +0800, Yu Zhao wrote:
> > > Hi Greg,
> > > 
> > > The `struct device' is preferred over the `struct kobject' in all cases
> > > that create subdirectory in sysfs, is this true?
> > 
> > If you have a parent directory being controlled by a struct device, yes.
> 
> Thanks! Do we need to document this somewhere?

Probably, patches gladly accepted for documentation fixes/updates :)

> > > I'd like to create a subdirectory under PCI device sysfs directory and
> > > put some symbol links into that directory (only symbol links). Should I
> > > use `device' or `kobject'? Currently I use `device' and get two extra
> > > file/directory (uevent and power) which look like useless for my case
> > > because this subdirectory doesn't reflect a real device.
> > 
> > Neither, just use an attribute group, no new struct device should be
> > needed at all.
> 
> Yes, I was thinking using an attribute group, however, it looks like we
> can't put symbol link into a group. Maybe I'm wrong, shed some light,
> please?

Why would you want a symbolic link in an attribute group?

confused,

greg k-h
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