Assembly Language Help (alang.hlp) (Table of Contents; Topic list)
Int 15h Function C2h Subfunction 00h
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  Interrupt:   15h     Function:   C2h     Subfunction:   00h
 
  Title:       Enable/Disable Pointing Device
 
  Description:                                                    [PS/2]
 
     Enables or disables the system's mouse or other pointing device.
 
     Input                        Output
 
     AH = C2h                     If function successful
     AL = 00h                       Carry flag: clear
     BH = Enable/disable flag       AH = 00h
          00h = Disable
          01h = Enable            If function unsuccessful
                                    Carry flag: set
                                    AH = Status
                                       = 01h (if invalid function call)
                                       = 02h (if invalid input)
                                       = 03h (if interface error)
                                       = 04h (if resend)
                                       = 05h (if no far call installed)
                                    -♦-