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AX = 5313h BX = device ID (see #00474) 0000h (APM BIOS) other reserved CL = function 00h disable timer-based requests 01h enable timer-based requests 02h get timer-based requests status
Return:
CF clear if successful CX = timer-based requests status (0000h disabled, 0001h enabled) CF set on error AH = error code (03h,09h,0Ah,0Bh,86h) (see #00473)
Notes: This function is supported via the INT 15, 16-bit protected mode, and 32-bit protected mode interfaces. Some BIOSes set AH on return even when successful
See Also: AX=5300h - AX=5310h - AX=5311h - AX=5312h
Category: Power Management - Int 15h - A
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