On Sat, Jan 22, 2000 at 10:03:25AM +0000, Doug Rabson wrote:
>>
>> Nice. The newbus architecture introduces overhead in I/O and old chipsets
>> (or old compatible modes) do not always support it.
>>
>> Your drive runs really faster too, doesn't it?
>
>Have you measured the overhead? I think it should be trivial compared to
>the effort of using inb/outb to poll a port.
No, but each time function calls are introduced in the ppbus framework
(initially to isolate ppbus layers and now with newbus) some parallel port
stop working. Certainly more a timing issue than a performance issue I think.
But some good hardware never failed, some bad hardware fails with either
slow (486) or fast processors.
>
>--
>Doug Rabson Mail: [EMAIL PROTECTED]
>Nonlinear Systems Ltd. Phone: +44 181 442 9037
>
>
>
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