Question: What does this code do? outb (0xAA, 0x2E); d = inb (0x2f); d |= 0x10; outb (0x2f, d);

What does this code do?
outb (0xAA, 0x2E);
d = inb (0x2f);
d |= 0x10;
outb (0x2f, d);

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