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SubjectRe: Input issues - key down with no key up
On Thu, Aug 21, 2003 at 05:03:33PM +0200, Maciej W. Rozycki wrote:

> I meant: how does the translation work if there is only a single onboard
> controller that does scanning of the embedded keyboard and presents set #1
> of codes directly? But after a bit of thinking I suppose it does support
> translation for an external keyboard (which presents set #2 by default and
> a lot of PC software expects set #1) and probably a pass-through mode for
> it as well.
> What the big fault of all these limited implementations is, there is no
> reliable way to query what is supported. If a device does not support
> mode switching or a particular mode, it should NAK a command that does it,
> or at least report the original mode if queried afterwards.

Most do, most do ...

> Another
> possibility is to return a different device ID -- IBM chose a single value
> of 256 possible for its PS/2 keyboards -- why couldn't the incompatible
> others have chosen something different, sigh?...

Some do ...

Vojtech Pavlik
SuSE Labs, SuSE CR
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