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Message-ID: <a71293c20503140401651ebfe0@mail.gmail.com>
Date: Mon, 14 Mar 2005 07:01:23 -0500
From: Stephen Evanchik <evanchsa@gmail.com>
Reply-To: Stephen Evanchik <evanchsa@gmail.com>
To: Vojtech Pavlik <vojtech@suse.cz>
Subject: Re: [PATCH 2.6.11] IBM TrackPoint support
Cc: Dmitry Torokhov <dtor_core@ameritech.net>, linux-kernel@vger.kernel.org
In-Reply-To: <20050314081949.GA2309@ucw.cz>
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References: <a71293c2050313210230161278@mail.gmail.com>
	 <20050314081949.GA2309@ucw.cz>
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On Mon, 14 Mar 2005 09:19:49 +0100, Vojtech Pavlik <vojtech@suse.cz> wrote:
> > +/*
> > + * Mode manipulation
> > + */
> > +#define TP_SET_SOFT_TRANS (0x4E) /* Set mode */
> > +#define TP_CANCEL_SOFT_TRANS (0xB9) /* Cancel mode */
> > +#define TP_SET_HARD_TRANS (0x45) /* Mode can only be set */
> 
> What exactly is transparent mode?

Transparency mode, when enabled, turns off the TrackPoint controller's
interpretation of the byte stream going to and coming from the
external PS/2 port if present.

Soft transparency mode can be cancelled, while hard transparency mode
requires a reset of the device and possibly the machine.

Stephen
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