bcdDevice variation

[Marcelo Tosatti]

Can someone explain this Boot2 version variation?

Oct  9 11:14:55 localhost kernel: [  500.710096] VID/PID = 1286/2001, Boot2 version = 3006
Oct  9 11:15:00 localhost kernel: [  507.014307] VID/PID = 1286/2001, Boot2 version = 3104
Oct  9 11:15:21 localhost kernel: [  526.503215] VID/PID = 1286/2001, Boot2 version = 3104
Oct  9 11:15:24 localhost kernel: [  530.228437] VID/PID = 1286/2001, Boot2 version = 3006
Oct  9 11:15:30 localhost kernel: [  537.577436] VID/PID = 1286/2001, Boot2 version = 3104
Oct  9 11:15:53 localhost kernel: [  557.358723] VID/PID = 1286/2001, Boot2 version = 3104
Oct  9 11:15:56 localhost kernel: [  561.133990] VID/PID = 1286/2001, Boot2 version = 3006
Oct  9 11:16:22 localhost kernel: [  587.846111] VID/PID = 1286/2001, Boot2 version = 3104
Oct  9 11:16:27 localhost kernel: [  591.385894] VID/PID = 1286/2001, Boot2 version = 3006
Oct  9 11:16:52 localhost kernel: [  617.878692] VID/PID = 1286/2001, Boot2 version = 3104
Oct  9 11:16:56 localhost kernel: [  622.298855] VID/PID = 1286/2001, Boot2 version = 3006
Oct  9 11:17:01 localhost kernel: [  630.023878] VID/PID = 1286/2001, Boot2 version = 3104
Oct  9 11:17:24 localhost kernel: [  650.384814] VID/PID = 1286/2001, Boot2 version = 3104
Oct  9 11:17:27 localhost kernel: [  653.511716] VID/PID = 1286/2001, Boot2 version = 3006
Oct  9 11:18:03 localhost kernel: [  691.964761] VID/PID = 1286/2001, Boot2 version = 3006
Oct  9 11:18:08 localhost kernel: [  697.559584] VID/PID = 1286/2001, Boot2 version = 3104
Oct  9 11:18:37 localhost kernel: [  723.269844] VID/PID = 1286/2001, Boot2 version = 3104
Oct  9 11:18:40 localhost kernel: [  727.221746] VID/PID = 1286/2001, Boot2 version = 3006