On Wed, 10 Oct 2007 11:38:50 -0400 (EDT),
Alan Stern <[EMAIL PROTECTED]> wrote:

> On Tue, 9 Oct 2007, Greg KH wrote:
> 
> > The rules for sysfs files are the following:
> >     - one value, in text format, per file.
> >     - no action apon open/close
> >     - binary files are only allowed for "pass-through" type files
> >       that the kernel does not touch (like for firmware and pci
> >       config space)
> >     - directories should be associated with a kobject where it makes
> >       sense (no nesting deep subdirectories without a kobject
> >       present)
> 
> You have to stretch this a little for the power/ subdirectory every 
> device gets.  The only kobject it corresponds to is the one in the 
> device, which already corresponds to the parent directory.

Yes, this should be "directories should be associated with a kobject or
generated by an attribute group". This way you won't get deep nesting
either.
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