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AX = 4403h BX = file handle referencing character device $IDLE$ CX = number of bytes to write (0004h) DS:DX -> $IDLE$ IOCTL structure (see #04113)
Return:
CF clear if successful AX = number of bytes actually written CF set on error AX = error code (01h,05h,06h,0Dh) (see #01680 at AH=59h/BX=0000h)
Notes: When the DR DOS IBMBIO.COM detects the presence of the $IDLE$ device during startup, it will retrieve the address of the idle state data area via INT 21/AX=4458h and pass it along to the $IDLE$ device driver by calling this function.
Format of DR DOS $IDLE$ IOCTL structure: Offset Size Description (Table 04113) 00h DWORD -> idle state data area (see Table !!! at INT 21/AX=4458h)
Category: Uncatagorized - Int 21h - D
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