Messages in this thread | | | Date | Mon, 14 Mar 2005 13:19:56 +0100 | From | Vojtech Pavlik <> | Subject | Re: [PATCH 2.6.11] IBM TrackPoint support |
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On Mon, Mar 14, 2005 at 07:01:23AM -0500, Stephen Evanchik wrote: > 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.
How much does it interpret the stream in non-transparent mode? Are commands also passed through in soft transparent mode?
I'm asking because we might want to implement a passthrough port similarly to what the Synaptics driver does and allow extended protocol mice to be connected to the external mouse port.
-- Vojtech Pavlik SuSE Labs, SuSE CR - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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