Re: Sio & Puc memory mapped

Bruce Evans wrote:

>On Wed, 12 May 2004, Roman Kurakin wrote:
>  
>
>>    Does any body workin on support for memory mapped serial adapters?
>>As I understand puc (4) allows to add support for such card, but sio (4)
>>cant
>>serve them any way.
>>    If nobody doesn't, why so? If no one of developers bother, does anybody
>>wants this support?
>>    
>>
>
>There is little need for it, because it is normal for pci 16550 cards to
>have i/o-mapped memory (possibly both memory-mapped and i/o mapped).
>  
>
I have one card that is only mem-maped.

rik

>I have uncommitted changed to use memory-mapped i/o for accessing the data
>registers only, since memory mapped i/o tends to be faster.  Implementing
>memory-mapped i/o more generally is easier.
>  
>
>Bruce
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>  
>