"Jay Shroff" <[EMAIL PROTECTED]> wrote in message
news:55231@palm-dev-forum...
>
> Hi All,
>
> I looked through the archives but am still stumped on
> how to go about developing a driver that would allow a
> external keyboard to be used on a palm device.
>
> I know there are commercial keyboards, but I want to
> learn how to write my own driver, any help will be
> appreciated.
>
> I guess the way to do this is to intercept the
> SerialReceive Interrupt and in there enque the
> keystroke, but how do I go about figuring out what
> interrupt and so on, some code will be a big help.
Most of the keyboards out there actually generate an external hotsync
interrupt by pulsing the HotSync line on the sync port. The keyboard
drivers hook into the HotSync interrupt, inspect the packet, and pass it
on to HotSync manager.
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