Synaptics

Download Source:	http://web.telia.com/~u89404340/touchpad/files/synaptics-0.14.6.tar.bz2

---

Introduction to Synaptics

This is a driver for the Synaptics TouchPad for XOrg/XFree86 4.x. A Synaptics touchpad by default operates in compatibility mode by emulating a standard mouse. However, by using a dedicated driver, more advanced features of the touchpad become available.

Project Homepage: Unknown

Dependencies

Required

• X Window System

Non-Multilib

Compile the package:

make PREFIX=/usr

Install the package

make PREFIX=/usr install

Multilib

32Bit

Compile the package:

PKG_CONFIG_PATH="${PKG_CONFIG_PATH32}" \
make PREFIX=/usr ARCH=i686 CC="gcc ${BUILD32}" LD="gcc ${BUILD32}"

Install the package:

PKG_CONFIG_PATH="${PKG_CONFIG_PATH32}" \
make PREFIX=/usr ARCH=i686 install

64Bit

Compile the package:

PKG_CONFIG_PATH="${PKG_CONFIG_PATH64}" \
make PREFIX=/usr ARCH=x86_64 CC="gcc ${BUILD64}" LD="gcc ${BUILD64}"

Install the package:

PKG_CONFIG_PATH="${PKG_CONFIG_PATH64}" \
make PREFIX=/usr ARCH=x86_64 install

Configuring The Driver

In addition to reading the information below it may not be a bad idea to read the synaptics(5) man page.

The following configuration serves as an example only.

Section "InputDevice"
    Identifier  "Synaptics Mouse"
    Driver      "synaptics"

    Option      "SHMConfig" "on"

    Option      "Device" "/dev/input/mouse0"
    Option      "Protocol" "auto-dev"

    Option      "LeftEdge" "1200"
    Option      "RightEdge" "5600"
    Option      "TopEdge" "1200"
    Option      "BottomEdge" "4600"

    Option      "FingerLow" "25"
    Option      "FingerHigh" "30"

    Option      "MaxTapTime" "180"
    Option      "MaxTapMove" "220"

    Option      "TapButton1" "0"
    Option      "TapButton2" "0"
    Option      "TapButton3" "0"

    Option      "VertScrollDelta" "100"
    Option      "HorizEdgeScroll" "0"

    Option      "MinSpeed" "0.09"
    Option      "MaxSpeed" "0.18"

    Option      "AccelFactor" "0.0015"
EndSection

And in the ServerLayout section:

    InputDevice    "Synaptics Mouse" "AlwaysCore"

The SHMConfig is very useful for creating your initial setup. This allows you to change these values through synclient without needing to restart the X server. It is recommended that you keep this option on.

Using synclient

synclient is a very useful tool to make configuring the touchpad very easy. You can list the current setting with synclient -l, monitor changes to the touchpad's state with synclient -m [time], and change a value with synclient var1=value1.

Running synclient -m [time] will give you an output similar to the following:

    time     x    y   z f  w  l r u d m     multi  gl gm gr gdx gdy
   0.110  3041 2923  24 1  4  0 0 0 0 0  00000000   0  0  0   0   0
   0.124  3056 2917  34 1  4  0 0 0 0 0  00000000   0  0  0   0   0
   0.134  3054 2922  34 1  4  0 0 0 0 0  00000000   0  0  0   0   0
   0.149  3054 2926  34 1  4  0 0 0 0 0  00000000   0  0  0   0   0
   0.171  3039 2992  12 1  4  0 0 0 0 0  00000000   0  0  0   0   0

What does all this mean:

• x & y are the position of the pressure on the pad.
• z is the amount of pressure on the pad.
• f is the number of fingers on the pad.
• w is a measurement of the finger width.
• l, r, u, d, m, & multi are all button states.
• gl, gm, & gr are designated for a guest device, (the knob in the middle of the keyboard).
• gdx & gdy relative position movements from the guest device.

Edge Settings

The easiest way to get the edge settings (LeftEdge, RightEdge, TopEdge, and BottomEdge) of your touchpad is to run synclient -m 100. Move your finger around the outside of the active area on the touchpad. The minimum and maximum x and y values you see on the screen will be the respective edges of your touchpad.

Pressure Settings

While you're looking at the output of the edge settings you can also get a good idea of what the pressure settings (FingerLow and FingerHigh) can be.

When the pressure on the touchpad (column z) is greater then FingerHigh, the driver will count this as a touch. When the pressure on the touchpad is less then FingerLow, the driver will count this is a release.

Tapping

There are a few ways to handle tapping.

One way to shut both tapping and scrolling off would be to set TouchpadOff=2.

The driver is very robust in the way that it supports one, two, and/or three finger taps. Which mouse button is pressed on these three different taps is controlled by the TapButton1, TapButton2, and TapButton3 settings. In the example all three of these are set to 0, which essentially turns tapping off. For example if you would like a single finger tap to represent a left mouse button click, set TapButton1=1.

Contents

Installed Programs:	synclient syndaemon
Installed Libraries:	${XORG_PREFIX}/lib/xorg/modules/input/synaptics_drv.so
Installed Directories:	None