Re: [RFC] kobject/kset/ktype documentation and example code updated

From: Greg KH
Date: Thu Dec 20 2007 - 17:22:20 EST


On Thu, Dec 20, 2007 at 05:03:35PM -0500, Robert P. J. Day wrote:
> On Thu, 20 Dec 2007, Greg KH wrote:
>
> > How about:
> > - A ktype is the type of object that embeds a kobject.
>
> if i were reading the above for the first time, i would have no idea
> what was being embedded where. "embeds a kobject" where? what's
> being embedded in what? that sentence doesn't make it clear. what's
> the current definition for a "struct kobject"?

Read on and hopefully you will learn more. As the beginning of the
article states, you have to start somewhere, it's all a circular
reference in the end :)

> > Every structure that embeds a kobject needs a corresponding ktype.
>
> and if it does, whose responsibility is it to provide one? mine?
> that's not clear.

Well, someone has to provide it, the code will not compile without
one...

> > The ktype controls what happens to the kobject when it is
> > created and destroyed.
>
> i doubt that. i wouldn't say that the ktype "controls" what happens,
> i would say that it "defines" what happens. to control suggests
> active participation.

Well, it controls how it is destroyed, and it controls how the uevents
happen when it is created. It is quite active :)

thanks,

greg k-h
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