Re: xxxVERBOSE module?

[Paul Goyette <paul%whooppee.com@localhost>]

On Thu, 20 May 2010, David Young wrote:

> On Wed, May 19, 2010 at 08:52:52PM -0700, Paul Goyette wrote:
> > From the comments in the GENERIC config files, the primary reason
> > for omitting the various xxxVERBOSE options is to avoid including
> > large text tables in the resulting kernel.  And I vaguely recall
> > some spirited discussion back when the change was made to exclude
> > these options by default.
> >
> > Now that we have MODULAR kernels (at least on some architectures),
> > I've been wondering if it might make sense to create a mod_verbose
> > that could be loaded during start-up time and then unloaded after
> > the machine is up and running.  (For plug-and-play situations, such
> > as USB, the module could be reloaded and unloaded whenever a new
> > device is added.)
> >
> > Is this something that would be useful?
>
> Yes, it would be.  ...

Kewl - I plan on starting with PCIVERBOSE, followed closely with USB.

> ...  Just an idea: we may get a lot of mileage out of a
> generic method for adding or augmenting, and removing kernel property
> lists from a kernel, either at run- or compile-time.
>
> Consider that much of the VERBOSE info is in tabular form, thus
> expressible by property list.  So are PCI/USB/... vendor/product tables
> that we use to match drivers with devices---I wish we could change
> those tables without recompiling.  I anticipate using property lists
> to express device locators.  So it seems to me that "linking" property
> lists into the kernel could be very useful.

Great idea, but I think I'll save that for a future time when I have a 
bit more free time!


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