uncertain $ tools/hciattach /dev/ttyAMA0 bcm43xx 3000000 flow - open '/dev/ttyAMA0', 258 -> 3 tcflush 3 -> 2 tcattr< 3 00 00 00 00 00 00 00 00 b2 18 00 80 00 00 00 00 tcattr< 3 18 77 11 ea 03 00 00 00 00 00 00 00 00 00 00 00 tcattr< 3 b8 71 61 e1 ff ff 00 00 20 70 61 e1 ff ff 00 00 tcattr< 3 00 00 00 00 00 00 00 00 58 56 15 ea tcattr> 3 00 00 00 00 00 00 00 00 b2 18 00 80 00 00 00 00 tcattr> 3 18 77 11 ea 03 00 00 00 00 00 00 00 00 00 00 00 tcattr> 3 b8 71 61 e1 ff ff 00 00 20 70 61 e1 ff ff 00 00 tcattr> 3 00 00 00 00 00 00 00 00 58 56 15 ea 0 -> 0 tcattr> 3 00 00 00 00 00 00 00 00 b2 18 00 80 00 00 00 00 tcattr> 3 18 77 11 ea 03 00 00 00 00 00 00 00 00 00 00 00 tcattr> 3 b8 71 61 e1 ff ff 00 00 20 70 61 e1 ff ff 00 00 tcattr> 3 00 00 00 00 00 00 00 00 58 56 15 ea 0 -> 0 tcflush 3 -> 2 bcm43xx_init
3 01 03 0c 00 Initialization timed out.