Trackpad scrolling with old PowerBooks and iBooks
Today, I will initiate a new post category : HOW-TOs. I will begin with two fingers scroll on old PowerBook and iBook models, without any third party software (like SideTrack), but just with a modified trackpad driver.
Is your trackpad compatible ?
First, you have to know if your trackpad may be used for two fingers scroll. You'll have to execute the following command line:
ioreg -l | grep "W Enhanced Trackpad"
What must be downloaded ?
If the previous command line returns "W Enhanced Trackpad = 1", then your trackpad may be used for two fingers scroll, and you can keep reading. Otherwise, do as you wish, but it will be time wasting.
Your trackpad is compatible. Go there, download one of the available drivers (i.e. iScroll2_all.zip), and unpack it into you home folder.
How-to install it ?
First, you have to unload the running trackpad driver. Execute the following command line:
sudo kextunload -b com.apple.driver.AppleADBMouse Now, do not touch your trackpad if you don't want to see a nice Kernel Panic. Then backup your old trackpad driver with the following command line:
sudo mv /System/Library/Extensions/AppleADBMouse.kext /System/Library/Extensions/AppleADBMouse.kext.old And replace the old driver with the enhanced one:
sudo mv $HOME/AppleADBMouse.kext /System/Library/Extensions/AppleADBMouse.kext Finally, change the driver access right, and load it
sudo chown -R root:wheel /System/Library/Extensions/AppleADBMouse.kext sudo kextload /System/Library/Extensions/AppleADBMouse.kext You may now use two fingers scrolling with your trackpad.
The trackpad driver is now automatically installed and loaded.