Re: Printing the device tree

[Steven Bellovin <smb%cs.columbia.edu@localhost>]

On Jan 9, 2010, at 5:26 PM, David Young wrote:

> On Fri, Jan 08, 2010 at 11:56:59PM +0100, Joerg Sonnenberger wrote:
>> Hi all,
>> someone asked a while ago for a script to print the device tree in a
>> nicely formatted fashion. Attached is a script to either draw some ASCII
>> art or produce dot output for graphviz (with -d). Comments?
> 
> I like it.  How about printing a device subtree when the caller provides
> an optional argument, the name of the root of the tree?
> 
> Dave
> 
> -- 
> David Young             OJC Technologies
> dyoung%ojctech.com@localhost      Urbana, IL * (217) 278-3933
> 

I tried it with dot output on two of my machines.  On both, dot objected to the 
second line: "syntax error".  Here's the start of the output:

digraph "Device tree" {
 -> mainbus0
mainbus0 -> cpu0
mainbus0 -> cpu1
mainbus0 -> ioapic0


                --Steve Bellovin, http://www.cs.columbia.edu/~smb