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AX = 5308h BX = device ID for all devices power-managed by APM 0001h (APM v1.1+) FFFFh (APM v1.0) CX = new state 0000h disabled 0001h enabled
Return:
CF clear if successful CF set on error AH = error code (01h,03h,09h,0Ah,0Bh) (see #00473)
Notes: When power management is disabled, the system BIOS will not automatically power down devices, enter stand-by or suspended mode, or perform any power-saving actions in response to AX=5305h calls. Should not be called from within a hardware interrupt handler to avoid reentrance problems. The APM BIOS should never be both disabled and disengaged at the same time
See Also: AX=5309h - AX=530Dh - AX=530Fh
Category: Power Management - Int 15h - A
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