hdaudio driver

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

I'm trying to clean up the hdaudio and hdaudio_pci drivers so they can 
actually be loaded as modules.  (The problem currently is a circular 
module dependency, as described in PR/49836).

I have resolved the issue regarding the definition of hdaudio_cd symbol, 
but there's still some unresolved symbols!

The configuration "tree" looks something like this:

	pci at mainbus
	hdaudio_pci at pci (provides hdaudiobus attribute)
	hdaudio at hdaudio_pci (vie hdaudiobus)
	hdafg at hdaudio
	audio at hdafg

For some reason, the interface-attribute driver hdaudio_pci.c calls the 
various 'struct cfattach' functions for the hdaudio driver.  For 
example, hdaudio_pci_rescan() calls hdaudio_rescan(), 
hdaudio_pci_childdet() calls hdaudio_childdet(), etc.  In effect, the 
parent device is calling the child device, which requires the child 
device's module to be loaded first.

It seems to me that this is somewhat backwards;  it makes more sense to 
me that the child device should be calling the parent's routines.

Am I misuderstanding something?





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| Paul Goyette     | PGP Key fingerprint:     | E-mail addresses:          |
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