Easily? If, like, e.g., on MacBooks (and probably all other laptops designed by someone with half a brain), the LED is wired directly into the power cable of th

Easily? If, like, e.g., on MacBooks (and probably all other laptops designed by someone with half a brain), the LED is wired directly into the power cable of the camera, there is no way you can turn the LED off through software. If the camera receives power the LED receives power. To get around this you would have to actually touch the hardware, so you need to take the device apart and rewire the camera (which can be and, considering the size of the device, probably will be pretty complicated). Sure, I’m certain it can be done, but not by many people.