Re: [linux-usb-devel] [RFC PATCH] debugfs - yet another in-kernel file system

[David Brownell <david-b@pacbell.net>]

On Friday 10 December 2004 5:39 pm, Greg KH wrote:
> > 
> > The problem with sysfs here is:  no seq_file support.
> > Otherwise it solves the basic "where to put the debug
> > files associated with "device X" or "driver Y" problems
> > in a good non-confusing way:  there are directories
> > already set up for devices and for drivers.
> 
> Yes, but that's a design decision for sysfs.  no seq_file support is a
> feature, not a shortcoming :)

It's an arbitrary fiat, sure; not a feature!  ;)


> > What I'd really want out of a debug file API is to resolve
> > the naming issues, work with seq_file, and "softly and
> > silently vanish away".  I think this patch has the last
> > two, but not the first one!
> 
> I considered adding a kobject as a paramater to the debugfs interface.
> The file created would be equal to the path that the kobject has.  Would
> that work for you?

If I could pass device->kobj or driver->kobj, that'd be good.
Will there be a /debug/devices tree parallel to /sys/devices?

- Dave