Bug 54752

Summary: bus_dma explained in ISA section in Handbook: should be in own topic
Product: Documentation Reporter: Rebecca Cran <bcran>
Component: Books & ArticlesAssignee: freebsd-doc (Nobody) <doc>
Status: Closed Overcome By Events    
Severity: Affects Only Me CC: pi
Priority: Normal    
Version: Latest   
Hardware: Any   
OS: Any   

Description Rebecca Cran freebsd_committer freebsd_triage 2003-07-22 16:50:20 UTC 
	bus_dma is the architecture independant DMA API, which applies both
	to PCI and ISA on x86 architectures.  However, it is explained only
	in the section about ISA resource allocation in the developers handbook.	Developers looking for information about DMA for PCI cards miss this 
	very useful information.  It should possibly be put into its own topic.

Fix: 

Create a topic documenting bus_dma?
How-To-Repeat: 	read http://www.freebsd.org/doc/en/books/developers-handbook/isa-driver-busmem.html
Comment 1 hmp 2003-09-06 19:00:07 UTC 
Bruce,

This is a good idea, and it has been discussed before, somewhere but I
am not sure where exactly.  Anyway, the bus_dma information in the ISA
section is old.

I have plans to write a bus_dma chapter for the Developer's Handbook ,but
not anytime soon as I am busy with College and what not.  If you want,
you can write a chapter for the Developer's Handbook which documents the
bus_dma subsyste -- you can get all the information you need for this
from the bus_dma(9) manual page.

Regards,

-- 
Hiten Pandya
hmp `at' backplane.com
Comment 2 Bruce M Simpson freebsd_committer freebsd_triage 2004-07-05 22:06:40 UTC 
Responsible Changed
From-To: freebsd-doc->hmp

hmp@ has an interest in busdma docs
Comment 3 Mark Linimon freebsd_committer freebsd_triage 2005-12-24 03:08:11 UTC 
State Changed
From-To: open->suspended

Mark suspended awaiting patches.
Comment 4 Kurt Jaeger freebsd_committer freebsd_triage 2016-07-17 20:10:31 UTC 
handbook no longer has a ISA section.