It seems that byte 0 and byte 1 are confused.

[shinyypig]

In Protocol.md, byte 0 includes buttons like 'Y', 'B', 'A', and so on. However, I found that buttons in byte 0 actually belong to byte 1, and those in byte 1 belong to byte 0.

[ShikyC]

Bump this, I also found this issue. Byte 0 should be the "-/+/LS/RS/Home/Capture/SL/SR" buttons and byte 1 should be "Y/B/A/X/L/R/ZL/ZR" ones.