Re: [PATCH 2/2] input: bcm5974-0.61: New default mouse driver mode
From: Dmitry Torokhov
Date: Tue Sep 02 2008 - 09:00:44 EST
On Mon, Sep 01, 2008 at 10:08:35PM +0200, Henrik Rydberg wrote:
> Currently, the Apple bcm5974 driver only mimics a synaptics touchpad, not a mouse.
> This creates unnecessary complications on systems where the synaptics driver is absent
> or not configured, such as in a completely new system, or a text console.
Mousedev should provide a reasonable emulation of standard mouse
giving user chance to configure the system properly. There is no need
to task the driver to provide such emulation and therefore I will not
apply this patch.
> This patch
> provides a default compatibility configuration, which works as a multi-button mouse,
> implemented using rudimentary multi-finger options. It yields the following benefits:
> * A default Xorg configuration will pick up the mouse input interface, resulting in a
> functional mouse pointer out-of-the-box on many systems.
This happens automatically with Synaptics hardware on newer
distributions (at least Fedora 9 does this). As far as I know
SYnaptics driver does no look for specific product but for a certain
features of the input device and so shoudl work for BCM as well.
> * Two-finger scroll emulates a mouse wheel.
> * Three-finger swipe emulates a horizontal mouse wheel.
> * Multi-finger clicks emulate the middle and right mouse buttons.
The kenel driver should only do as little translation as possible,
allowing userspace to decide how to implement more fancy features.
> * The mouse driver also works with gpm in text consoles, providing cut-and-paste functionality.
Does not mousedev emulation work from GPM? Also GPM has evdev protocol
support which should work very well with synaptics-like touchpads.
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/