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2F4A00CX0000

Category: DOS kernel
Flags: callout or callback (usually hooked rather than called), Undocumented function

INT 2F - DOS 5+ - FLOPPY-DISK LOGICAL DRIVE CHANGE NOTIFICATION

	AX = 4A00h
	CX = 0000h
	DH = new drive number
	DL = current drive number
Return: CX = FFFFh to skip "Insert diskette for drive X:" message
Note:	called by MS-DOS 5.0+ IO.SYS just before displaying the message
	  "Insert diskette for drive X:" on single-floppy systems

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