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Logitech Support
Some Logitech USB mice support special features, such as switching to a higher resolution, or providing cordless status. If KDE was built with libusb support, then you will get an additional tab for each supported mouse that is plugged in.
The supported devices are:

Kod: Zaznacz cały

Wheel Mouse Optical
MouseMan Traveler
MouseMan Dual Optical
MX310 Optical Mouse
MX510 Optical Mouse
MX300 Optical Mouse
MX500 Optical Mouse
iFeel Mouse
Mouse Receiver
Dual Receiver
Cordless Freedom Optical
Cordless Elite Duo
MX700 Optical Mouse
Cordless Optical Trackman
Cordless MX Duo Receiver
MX100 Laser Mouse

Receiver for Cordless Presenter
Not all devices support all capabilities (typically cordless devices do not provide resolution switching, and of course only cordless devices support cordless status reporting), so some parts of the tab will not be enabled for some mouse types.
If the mouse supports resolution switching, the Sensor Resolution radio button group will be enabled, and you can switch from 400 counts per inch to 800 counts per inch and back. If you use 800 counts per inch, the same physical movement of the mouse will cause a greater (roughly double) amount of motion of the cursor. This tends to be popular amongst gamers.
If the mouse supports cordless reporting, the Battery Level and RF Channel widgets will be enabled. You can only change the RF Channel if your mouse has two channel support.
Fixing permission problems on Logitech mice
Because of the way USB devices work, the code that accesses the current status on Logitech mice needs to be able to write to the mouse. This should be handled by your distribution, but if not, you may need to do some configuration yourself.
On a Linux system, you should use the hotplug system to change the ownership and permissions on the mouse entry in /proc/bus/usb. One way to do this is to create a short script (/etc/hotplug/usb/consoleUserPerms) that changes the ownership and permissions, as shown below:

Kod: Zaznacz cały

#!/bin/bash
#
# /etc/hotplug/usb/consoleUserPerms
#
# Sets up newly plugged in USB device so that the user who owns
# the console according to pam_console can access it from user space
#
# Note that for this script to work, you'll need all of the following:
# a) a line in the file /etc/hotplug/usb.usermap or another usermap file
#    in /etc/hotplug/usb/ that corresponds to the device you are using.
# b) a setup using pam_console creates the respective lock files
#    containing the name of the respective user. You can check for that
#    by executing "echo `cat /var/{run,lock}/console.lock`" and
#    verifying the appropriate user is mentioned somewhere there.
# c) a Linux kernel supporting hotplug and usbdevfs
# d) the hotplug package ([url]http://linux-hotplug.sourceforge.net/[/url])
#
# In the usermap file, the first field "usb module" should be named
# "consoleUserPerms" to invoke this script.
#

if [ "${ACTION}" = "add" ] && [ -f "${DEVICE}" ]
then
# New code, using lock files instead of copying /dev/console permissions
# This also works with non-kdm logins (e.g. on a virtual terminal)
# Idea and code from Nalin Dahyabhai <nalin@redhat.com>
    if [ -f /var/run/console.lock ]
    then
        CONSOLEOWNER=`cat /var/run/console.lock`
    elif [ -f /var/lock/console.lock ]
    then
        CONSOLEOWNER=`cat /var/lock/console.lock`
    else
        CONSOLEOWNER=
    fi
    if [ -n "$CONSOLEOWNER" ]
    then
        chmod 0000 "${DEVICE}"
        chown "$CONSOLEOWNER" "${DEVICE}"
        chmod 0600 "${DEVICE}"
    fi
fi


 The usermap file that goes with this is /etc/hotplug/usb/logitechmouse.usermap, as shown below: 

# script           match_flags idVendor idProduct bcdDevice_lo bcdDevice_hi bDeviceClass bDeviceSubClass bDeviceProtocol bInterfaceClass bInterfaceSubClass bInterfaceProtocol driver_info
# Wheel Mouse Optical
consoleUserPerms     0x0003      0x046d   0xc00e    0x0000       0xffff      0x00         0x00            0x00            0x00            0x00               0x00               0x00000000
# MouseMan Traveler
consoleUserPerms     0x0003      0x046d   0xc00f    0x0000       0xffff      0x00         0x00            0x00            0x00            0x00               0x00               0x00000000
# MouseMan Dual Optical
consoleUserPerms     0x0003      0x046d   0xc012    0x0000       0xffff      0x00         0x00            0x00            0x00            0x00               0x00               0x00000000
# MX310 Optical Mouse
consoleUserPerms     0x0003      0x046d   0xc01b    0x0000       0xffff      0x00         0x00            0x00            0x00            0x00               0x00               0x00000000
# MX510 Optical Mouse
consoleUserPerms     0x0003      0x046d   0xc01d    0x0000       0xffff      0x00         0x00            0x00            0x00            0x00               0x00               0x00000000
# MX300 Optical Mouse
consoleUserPerms     0x0003      0x046d   0xc024    0x0000       0xffff      0x00         0x00            0x00            0x00            0x00               0x00               0x00000000
# MX500 Optical Mouse
consoleUserPerms     0x0003      0x046d   0xc025    0x0000       0xffff      0x00         0x00            0x00            0x00            0x00               0x00               0x00000000
# iFeel Mouse
consoleUserPerms     0x0003      0x046d   0xc031    0x0000       0xffff      0x00         0x00            0x00            0x00            0x00               0x00               0x00000000
# Mouse Receiver
consoleUserPerms     0x0003      0x046d   0xc501    0x0000       0xffff      0x00         0x00            0x00            0x00            0x00               0x00               0x00000000
# Dual Receiver
consoleUserPerms     0x0003      0x046d   0xc502    0x0000       0xffff      0x00         0x00            0x00            0x00            0x00               0x00               0x00000000
# Cordless Freedom Optical
consoleUserPerms     0x0003      0x046d   0xc504    0x0000       0xffff      0x00         0x00            0x00            0x00            0x00               0x00               0x00000000
# Cordless Elite Duo
consoleUserPerms     0x0003      0x046d   0xc505    0x0000       0xffff      0x00         0x00            0x00            0x00            0x00               0x00               0x00000000
# MX700 Optical Mouse
consoleUserPerms     0x0003      0x046d   0xc506    0x0000       0xffff      0x00         0x00            0x00            0x00            0x00               0x00               0x00000000
# Cordless Optical Trackman
consoleUserPerms     0x0003      0x046d   0xc508    0x0000       0xffff      0x00         0x00            0x00            0x00            0x00               0x00               0x00000000
# Cordless MX Duo Receiver
consoleUserPerms     0x0003      0x046d   0xc50b    0x0000       0xffff      0x00         0x00            0x00            0x00            0x00               0x00               0x00000000
# MX100 Laser Mouse
consoleUserPerms     0x0003      0x046d   0xc50e    0x0000       0xffff      0x00         0x00            0x00            0x00            0x00               0x00               0x00000000
# Receiver for Cordless Presenter
consoleUserPerms     0x0003      0x046d   0xc702    0x0000       0xffff      0x00         0x00            0x00            0x00            0x00               0x00               0x00000000

That should be all that is needed on Linux - just copy the files into /etc/hotplug/usb/, and when the mouse is plugged in, the ownership and permissions should be changed so that the user at the console can access the mouse.