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Date: Wed, 26 May 1999 12:37:02 -0400 (EDT)
From: Garrett Wollman <wollman@khavrinen.lcs.mit.edu>
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To: Roger Hardiman <roger@cs.strath.ac.uk>
Cc: Nick Hibma <nick.hibma@jrc.it>,
	Roger Hardiman <roger@FreeBSD.org>, cvs-committers@FreeBSD.org,
	cvs-all@FreeBSD.org
Subject: Re: cvs commit: src/sys/conf options
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<<On Wed, 26 May 1999 16:11:16 +0100, Roger Hardiman <roger@cs.strath.ac.uk> said:

> While on the subject, I want the bt848 driver to read the
> PCI Host chipset ID and select the 'compatibility' mode
> automatically. (Just like the Windows and Linux drivers do)

It looks like:

{
	device_t myparent, hisparent;
	u_int32_t data;

	myparent = device_get_parent(me);
	hisparent = device_get_parent(myparent);

	data = PCI_READ_CONFIG(hisparent, myparent, PCIR_DEVVENDOR, 4);

	switch (data) {
	case 0x12345678:
		something_special = 1;
		break;
	/* other cases */
	}
}

...is all you need for -current.

-GAWollman

--
Garrett A. Wollman   | O Siem / We are all family / O Siem / We're all the same
wollman@lcs.mit.edu  | O Siem / The fires of freedom 
Opinions not those of| Dance in the burning flame
MIT, LCS, CRS, or NSA|                     - Susan Aglukark and Chad Irschick


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