Re: [RFC/Patch] Device Registry

[Tim Jansen <tim@tjansen.de>]

On Sunday 01 April 2001 19:47, you wrote:
> A one sentence summary:  this registry is a text file in a new
> format, presenting a logically flat namespace of devices each
> with descriptive {attribute-name,value} pairs (X.500-ish).

Thinking about this for the last few days, I think it was a mistake to use 
name/value pairs. One of the ideas of devreg was to replace all these files 
like /proc/pci, /proc/bus/usb/devices (or their binary, non-deprecated 
equivalents) with a single file, but it is not possible to make complex lists 
with name/value pairs. For example they cannot be used to list all endpoints 
of an USB interface. 

I need a more complex format for that, and the obvious choice would be XML. 
The idea of using XML in the kernel seems weird to me, but as long as you 
only write it there is no overhead compared to other solutions. Using tools 
like grep is a problem though. even they are still usable as long as the 
layout is grep-friendly (elements and their content on the same line and so 
on).

I'd like to get some opinions about that and maybe alternatives...

bye...


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