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0ea6e61122
Below you will find an updated version from the original series bunching all patches into one big patch updating broken web addresses that are located in Documentation/* Some of the addresses date as far far back as 1995 etc... so searching became a bit difficult, the best way to deal with these is to use web.archive.org to locate these addresses that are outdated. Now there are also some addresses pointing to .spec files some are located, but some(after searching on the companies site)where still no where to be found. In this case I just changed the address to the company site this way the users can contact the company and they can locate them for the users. Signed-off-by: Justin P. Mattock <justinmattock@gmail.com> Signed-off-by: Thomas Weber <weber@corscience.de> Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Cc: Paulo Marques <pmarques@grupopie.com> Cc: Randy Dunlap <rdunlap@xenotime.net> Cc: Michael Neuling <mikey@neuling.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
85 lines
3.2 KiB
Text
85 lines
3.2 KiB
Text
Apple Touchpad Driver (appletouch)
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----------------------------------
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Copyright (C) 2005 Stelian Pop <stelian@popies.net>
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appletouch is a Linux kernel driver for the USB touchpad found on post
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February 2005 and October 2005 Apple Aluminium Powerbooks.
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This driver is derived from Johannes Berg's appletrackpad driver[1], but it has
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been improved in some areas:
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* appletouch is a full kernel driver, no userspace program is necessary
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* appletouch can be interfaced with the synaptics X11 driver, in order
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to have touchpad acceleration, scrolling, etc.
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Credits go to Johannes Berg for reverse-engineering the touchpad protocol,
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Frank Arnold for further improvements, and Alex Harper for some additional
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information about the inner workings of the touchpad sensors. Michael
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Hanselmann added support for the October 2005 models.
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Usage:
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------
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In order to use the touchpad in the basic mode, compile the driver and load
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the module. A new input device will be detected and you will be able to read
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the mouse data from /dev/input/mice (using gpm, or X11).
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In X11, you can configure the touchpad to use the synaptics X11 driver, which
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will give additional functionalities, like acceleration, scrolling, 2 finger
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tap for middle button mouse emulation, 3 finger tap for right button mouse
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emulation, etc. In order to do this, make sure you're using a recent version of
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the synaptics driver (tested with 0.14.2, available from [2]), and configure a
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new input device in your X11 configuration file (take a look below for an
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example). For additional configuration, see the synaptics driver documentation.
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Section "InputDevice"
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Identifier "Synaptics Touchpad"
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Driver "synaptics"
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Option "SendCoreEvents" "true"
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Option "Device" "/dev/input/mice"
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Option "Protocol" "auto-dev"
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Option "LeftEdge" "0"
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Option "RightEdge" "850"
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Option "TopEdge" "0"
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Option "BottomEdge" "645"
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Option "MinSpeed" "0.4"
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Option "MaxSpeed" "1"
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Option "AccelFactor" "0.02"
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Option "FingerLow" "0"
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Option "FingerHigh" "30"
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Option "MaxTapMove" "20"
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Option "MaxTapTime" "100"
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Option "HorizScrollDelta" "0"
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Option "VertScrollDelta" "30"
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Option "SHMConfig" "on"
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EndSection
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Section "ServerLayout"
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...
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InputDevice "Mouse"
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InputDevice "Synaptics Touchpad"
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...
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EndSection
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Fuzz problems:
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--------------
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The touchpad sensors are very sensitive to heat, and will generate a lot of
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noise when the temperature changes. This is especially true when you power-on
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the laptop for the first time.
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The appletouch driver tries to handle this noise and auto adapt itself, but it
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is not perfect. If finger movements are not recognized anymore, try reloading
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the driver.
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You can activate debugging using the 'debug' module parameter. A value of 0
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deactivates any debugging, 1 activates tracing of invalid samples, 2 activates
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full tracing (each sample is being traced):
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modprobe appletouch debug=1
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or
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echo "1" > /sys/module/appletouch/parameters/debug
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Links:
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------
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[1]: http://johannes.sipsolutions.net/PowerBook/touchpad/
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[2]: http://web.archive.org/web/*/http://web.telia.com/~u89404340/touchpad/index.html
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