3 ms·

No, it has been software for many years. But I recall seeing something recent that Apple was trying to make it hardware linked now.

• saagarjha 8y ago
  It is hardware linked.
  • jtbayly 8y ago
    Which models? And please provide a reference.
  • zeckalpha 8y ago
    Not on iOS devices
    • saagarjha 8y ago
      …which don't have a light? I don't see what your point is.