Int 32 Fn 6E18  - Noise.sys V0.6+ - Read Control Record                    [-]

   AX = 6E18h
   CX = buffer size
   ES:DI -> buffer

Return: AL = status
       00h unimplemented (before v0.6)
       FEh subfunction is disabled
       FFh successful
       CX = number of bytes read

Note:  the control record corresponds to the IOCTL Read record for the RANDOM
     device