For Sparc

• 1. Enable the XKB extension of xsun server(How to enable XKB extension of xsun server).
• 2. Run "ls -l /dev/usb/hid*" to see what the existing device names are.
• 3. Attach the additional input device(the second mouse, usb physical interface) to the machine.
• 4. Run "ls -l /dev/usb/hid*" to see what the newly attached device names are. Note at the end of each symlink line it will list whetherit is a keyboard or a mouse(here we attached the mouse).
• 5. Backup the original file /usr/openwin/server/etc/OWconfig.
• 6. Edit the file /usr/openwin/server/etc/OWconfig, add lines of the following form to OWconfig, one for each device, and each with aunique name beginning with "IMOUSE" or "IKBD":

   For Keyboard:
   # sun Keyboard module
   class="XINPUT" name="IKBD2"
               dev="/dev/usb/hid3" strmod="usbkbm"    #"hid*" here is as same as which you got from step3.
               ddxHandler="ddxSUNWkbd.so.1"
               ddxInitFunc="ddxSUNWkbdProc";

   For Mouse:
   # sun Mouse module
   class="XINPUT" name="IMOUSE2"                      #"IMOUSE*" is determined by the amount of mice which
                                                      have been attached to your machine.
               dev="/dev/usb/hid3" strmod="usbms"     #"hid*" here is as same as which you got from step3.
               ddxHandler="ddxSUNWmouse.so.1"
               ddxInitFunc="ddxSUNWmouseProc";

• 6. Add "#" before each line of "Null Mouse module" section.

   # Null Mouse module
   #class="XINPUT" name="NMOUSE"
   #       ddxHandler="ddxSUNWmouse.so.1"
   #       ddxInitFunc="ddxnullmouseProc";

• 7. Save changes and restart Xsession.