From owner-freebsd-hackers@FreeBSD.ORG  Mon Sep  5 21:26:45 2005
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From: Hans Petter Selasky <hselasky@c2i.net>
To: freebsd-hackers@freebsd.org
Date: Mon, 5 Sep 2005 23:27:36 +0200
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Subject: Bus DMA question
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Hi,

When one creates a DMA tag for a PCI device, using "bus_dma_tag_create()", I 
see that most drivers use "NULL" for the parent field, at some point, but 
shouldn't this field actually point to the DMA tag of the bus where the 
device is physically attached ?

--HPS