[rescue] USB port card for sBus?

[Joshua Boyd]

On Aug 22, 2008, at 9:12 PM, Lionel Peterson wrote:

>> From: stephen price <sd_price at yahoo.com>
>> Date: 2008/08/22 Fri PM 05:53:35 EDT
>> To: The Rescue List <rescue at sunhelp.org>
>> Subject: Re: [rescue] USB port card for sBus?
>
>>> What about a USB PCMCIA card stuffed in an SBUS PCMCIA
>>> adapter? That would give you a hardware connection that
>>> would need a bit of software "glue" to make it
>>> work...
>>
>> Correct me if I'm wrong - but I believe that the sbus pcmcia is  
>> 16bit only - and usb cards are cardbus or 32bit - I've never seen  
>> a 16bit pcmcia usb card - if there is one would someone please  
>> tell me!
>
> I dunno, but you bring up a good point - what about using a serial  
> to USB adapter? In *theory* they should work either way, just trade  
> the USB plug to the proper gender and maybe power it from a wall- 
> wart...
>
> Again, this would likely leave a driver issue, but that should be  
> workable...

There is a serious speed mismatch there.  Even USB low speed is  
faster than the serial you would find on a lot of regular machines,  
and anything that operates in 12Mbps mode is probably right out.