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How to set the scroll speed of apple magic mouse?

I only found the moving speed.

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Currently there is no way to do it GUI-way system wide. See this for some workarounds: In web browsers, it can be set separately (Firefox, Chromium/Chrome). –  pileofrocks Feb 28 '13 at 0:15

2 Answers 2

At the moment only way is setup it directly in hid_magicmouse driver.

For testing run:

sudo rmmod hid_magicmouse
# scroll-speed value from 0 (slow) to 63 (fast):
sudo modprobe hid_magicmouse scroll-speed=45 scroll-acceleration=1 

For permanent settings put to the /etc/modprobe.d/magicmouse.conf this:

options hid_magicmouse scroll-speed=45 scroll-acceleration=1
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any other elegant way to change it instead of using command? –  王子1986 Mar 25 '13 at 6:44
There's nothing more elegant as the command line :-) –  igracia Aug 14 at 9:44

You can also write to the parameters via the /sys kernel interface:

$ ls /sys/module/hid_magicmouse/parameters/
emulate_3button  emulate_scroll_wheel  report_undeciphered  scroll_acceleration  scroll_speed
$ cat /sys/module/hid_magicmouse/parameters/scroll_speed
$ echo N | sudo tee /sys/module/hid_magicmouse/parameters/scroll_acceleration 

You can ogle the source here:

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