Re: vsbus doc?

[Johnny Billquist <bqt%softjar.se@localhost>]

Ragge can preobably make a better comment on this, but my 
recollection/understanding is that "vsbus" is just an artificial name 
since you need some kind of bus to hang all the drivers off, and you 
need to call it something.

Not sure how much, if anything actual physical represents this. But it 
holds the I/O space, and manages DMA.

If this answer makes any sense, I don't know. :-)

  Johnny

On 08/04/2026 17.18, Mouse wrote:
> I'm finding myself wanting to backport support for the 3100/80 from 5.2
> and/or 4.0.1 to 1.4T.
>
> To some extent, I can just copy code.  But I'd like to understand it,
> if only to make sure I get it integrated correctly.
>
> The major piece I'm aware of at the moment that I don't understand is
> the hardware backing (what 4.0.1 and 5.2 call) vsbus.  Clearly
> _someone_ understood it at some point, or the code wouldn't exist.  So
> what I'm asking is, does anyone know of any documentation on that
> hardware, documentation suitable for someone writing OS-level code for
> it?
>
> I haven't gone searching because I don't know what to search for.  I've
> done a little searching for 3100/80 stuff, but the false positives
> always flood the search results to the point of uselessness, so I
> clearly haven't found the right search terms.
>
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