nitpick: wrong delay?

Sorry, I just looked at the code and saw this:
```
b"\x01\x80\x80"# Software reset then delay 0x78 (120ms)
```

I assume that ``\x80`` is the command to do a delay, because later on there are lines that say:

```
b"\x11\x80\x78"# Exit Sleep then delay 0x78 (120ms)
```

But if that's true, then it seems that command delays for 128ms, not 120ms as the comment says.