In today's PC's IRQ1 is internal to the mobo: goes from keyboard chip to
8259 substitute (surely inside the chipset), so unless using a cutter there
is no way to use it. Indirectly, some device could be plugged in the
keyboard connector, and use the keyboard protocol (as a barcode reader).
************************************
Javier Vizcaino. Ability Electronics. [log in to unmask]
  Starting point:        (-1)^(-1) = -1
  Applying logarithms: (-1)*ln(-1) = ln(-1)
  Since ln(-1) <> 0, dividing:  -1 = 1     (ln(-1) is complex, but exists)
-----Mensaje original-----
De: Stan Zaske <[log in to unmask]>
Para: [log in to unmask] <[log in to unmask]>
Fecha: domingo 28 de junio de 1998 19:31
Asunto: Re: [PCBUILD] USB


>        One additional caveat is that I doubt there has ever been a
component
>produced that will take advantage of the keyboards IRQ 1. So if you do go
>with the USB keyboard IRQ 1 will sit there unused until some manufacturer
>comes along to take advantage of it. Have I missed anything?
>
>-Stan
>