There are two steps involved:
Make sure you are allowed to mount/unmount the device
Normally, only root is allowed to mount/unmount devices. If you are not running KDE as root (and this is generally considered a bad idea :), you must set the right for users to mount a device in /etc/fstab. This means to add the option user to the options of the file system you want to mount.
For example, to mount the floppy, your /etc/fstab should include
/dev/fd0 /floppy msdos noauto,user,sync 0 0 |
Create a kdelnk file for the filesystem
An example for a device kdelnk file is:
# KDE Config File [KDE Desktop Entry] UnmountIcon=3floppy_unmount.xpm MountPoint=/floppy Icon=3floppy_mount.xpm Dev=/dev/fd0 ReadOnly=0 FSType=default Type=FSDevice Comment=Floppy Disc |