2007/477: Drivers registering devids

[Chris Horne]

James Carlson wrote:
> Jerry Gilliam writes:
>   
>>> The function has been in the DDI for more than ten years ... has it
>>> been unusable that whole time due to the static list?
>>>
>>>       
>> This is a piece of work required to complete the devid cache discovery
>> mechanism for devid providers not bundled in the ON consolidation.
>>     
>
> OK.  The surprising thing to me was that we added this to the DDI long
> ago -- making it theoretically available for others to use -- but if
> they ever tried using it, it wouldn't have worked as expected, at
> least according to this project.
>   
This is fixing an s10 regression. The original pre-s10 implementation 
would, in
the extreme, load *all* drivers to resolve a devid. In s10 the *all* 
driver approach
was replaced with a compiled in table, which was not extensible. We are now
providing an extensible mechanism that is more efficient than loading 
all drivers.

-Chris