# lspci | grep VGA  
03:00.0 VGA compatible controller: nVidia Corporation ION VGA (rev b1)

# ls /dev/input/mouse*  

/dev/input/mouse0 /dev/input/mouse1 /dev/input/mouse2 /dev/input/mouse3
The following command gives a complete list with the connect devices:  

$ cat /proc/bus/input/devices

I: Bus=0003 Vendor=413c Product=2003 Version=0110  
N: Name="Dell Dell USB Keyboard"  
P: Phys=usb-0000:00:04.0-1/input0  
S: Sysfs=/devices/pci0000:00/0000:00:04.0/usb3/3-1/3-1:1.0/input/input3  
U: Uniq=  
H: Handlers=kbd event3  
B: EV=120013  
B: KEY=10000 7 ff9f207a c14057ff febeffdf ffefffff ffffffff fffffffe  
B: MSC=10  
B: LED=7
I: Bus=0003 Vendor=413c Product=3016 Version=0111  
N: Name="Dell Premium USB Optical Mouse"  
P: Phys=usb-0000:00:04.0-2/input0  
S: Sysfs=/devices/pci0000:00/0000:00:04.0/usb3/3-2/3-2:1.0/input/input4  
U: Uniq=  
H: Handlers=mouse1_event4  
B: EV=17  
B: KEY=31f0000 0 0 0 0 0 0 0 0  
B: REL=143  
B: MSC=10_

I: Bus=0003 Vendor=413c Product=3016 Version=0111  
N: Name="Dell Premium USB Optical Mouse"  
P: Phys=usb-0000:00:06.0-1/input0  
S: Sysfs=/devices/pci0000:00/0000:00:06.0/usb4/4-1/4-1:1.0/input/input5  
U: Uniq=  
H: Handlers=mouse2_event5  
B: EV=17  
B: KEY=31f0000 0 0 0 0 0 0 0 0  
B: REL=143  
B: MSC=10_
I: Bus=0017 Vendor=0001 Product=0001 Version=0100  
N: Name="Macintosh mouse button emulation"  
P: Phys=  
S: Sysfs=/devices/virtual/input/input2  
U: Uniq=  
H: Handlers=mouse0_event2  
B: EV=7  
B: KEY=70000 0 0 0 0 0 0 0 0  
B: REL=3
I: Bus=0003 Vendor=0c45 Product=7403 Version=0100  
N: Name="RF-Dongle"  
P: Phys=usb-0000:00:06.0-2/input0  
S: Sysfs=/devices/pci0000:00/0000:00:06.0/usb4/4-2/4-2:1.0/input/input6  
U: Uniq=  
H: Handlers=kbd_event6  
B: EV=120013  
B: KEY=10000 7 ff800000 7ff febeffdf ffefffff ffffffff fffffffe  
B: MSC=10  
B: LED=1fI: Bus=0003 Vendor=0c45 Product=7403 Version=0100
N: Name="RF-Dongle"  
P: Phys=usb-0000:00:06.0-2/input1  
S: Sysfs=/devices/pci0000:00/0000:00:06.0/usb4/4-2/4-2:1.1/input/input7  
U: Uniq=  
H: Handlers=kbd mouse3_event7  
B: EV=1f  
B: KEY=1f0000 0 2020000 3878 d801d001 1e0000 0 0 0  
B: REL=103  
B: ABS=1 0  
B: MSC=10

Devices and the screens

I sorted my input devices for mouse and keyboard:

  • kbd event3 -> Dell USB keyboard
  • mouse1 event4 -> Dell USB Optical Mouse 1
  • mouse1 event5 -> Dell USB Optical Mouse 2

KeySonic Keyboard KSK-3200 RF

This is a mini keyboard with trackball, this gives the following input devices:

  • kbd event6 -> keyboard input
  • mouse0 event2 -> mouse buttons
  • kbd mouse3 event7 -> trackball positie

To the NVidia ION controller are 2 screens connected:

  • VGA: DELL E172FP (CRT-0)
  • HDMI: SONY TV (DFP-1)