Comment 49 for bug 550288

Having the same issue. Only that mine may be a little bit more complex.
Running a Mac Mini 4,1 (last one available) with KUbuntu. And - because I didn't want to use any more USB Ports, I also got the MX5500 Keyboard/Mouse combination.

So - setup is simple: Mac Mini builtin bluetooth communication device, and MX5500 hooked up to it.
Now - both are recognized as HID devices (Keyboard and mouse).
But - I only have basic functionality on both. Means:
1. The keyboard only has the standard keys to run on (at least I can type). Nothing else (Multimedia keys etc. are running).
2. The mouse only has Left/Right buttons, and mouse function. Nothing else. Roll-function disabled, all supp. keys are disabled as well.

Hence - it's not really usable.
For information - running Maverick 10.10 64Bit version here, latest updates applied.
At least under Mac OS-X I can use the middle Mouse Roll button.

smurphy@pandora:~$ sudo lsusb
Bus 004 Device 006: ID 05ac:8218 Apple, Inc.
Bus 004 Device 005: ID 05ac:820b Apple, Inc.
Bus 004 Device 004: ID 05ac:820a Apple, Inc.
Bus 004 Device 003: ID 0a5c:4500 Broadcom Corp. BCM2046B1 USB 2.0 Hub (part of BCM2046 Bluetooth)
Bus 004 Device 002: ID 05ac:8242 Apple, Inc. IR Receiver [built-in]
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 002: ID 046d:0990 Logitech, Inc. QuickCam Pro 9000
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Here the relevant parts for the mouse/keyboard out of lsinput:
/dev/input/event4
   bustype : BUS_USB
   vendor : 0x5ac
   product : 0x820a
   version : 273
   name : "HID 05ac:820a"
   phys : "usb-0000:00:06.0-6.1/input0"
   uniq : ""
   bits ev : EV_SYN EV_KEY EV_MSC EV_LED EV_REP

/dev/input/event5
   bustype : BUS_USB
   vendor : 0x5ac
   product : 0x820b
   version : 273
   name : "HID 05ac:820b"
   phys : "usb-0000:00:06.0-6.2/input0"
   uniq : ""
   bits ev : EV_SYN EV_KEY EV_REL EV_MSC

Dmesg output:
[ 2.085653] usbhid: USB HID core driver
[ 2.099137] apple 0003:05AC:8242.0001: hiddev96,hidraw0: USB HID v1.11 Device [Apple Computer, Inc. IR Receiver] on usb-0000:00:06.0-5/input0
[ 2.358048] EXT4-fs (sda3): mounted filesystem with ordered data mode. Opts: (null)
[ 2.412552] usb 4-6: new full speed USB device using ohci_hcd and address 3
[ 2.649071] hub 4-6:1.0: USB hub found
[ 2.652056] hub 4-6:1.0: 3 ports detected
[ 2.952110] usb 4-6.1: new full speed USB device using ohci_hcd and address 4
[ 3.087301] input: HID 05ac:820a as /devices/pci0000:00/0000:00:06.0/usb4/4-6/4-6.1/4-6.1:1.0/input/input4
[ 3.087393] generic-usb 0003:05AC:820A.0002: input,hidraw1: USB HID v1.11 Keyboard [HID 05ac:820a] on usb-0000:00:06.0-6.1/input0
[ 3.172109] usb 4-6.2: new full speed USB device using ohci_hcd and address 5
[ 3.307343] input: HID 05ac:820b as /devices/pci0000:00/0000:00:06.0/usb4/4-6/4-6.2/4-6.2:1.0/input/input5
[ 3.307455] generic-usb 0003:05AC:820B.0003: input,hidraw2: USB HID v1.11 Mouse [HID 05ac:820b] on usb-0000:00:06.0-6.2/input0
[ 3.392108] usb 4-6.3: new full speed USB device using ohci_hcd and address 6
[ 4.941515] Adding 7813116k swap on /dev/sda4. Priority:-1 extents:1 across:7813116k
[ 4.950420] udev[415]: starting version 163

So - I got these as generic, but I didn't buy that keyboard to have generic functionality only :}