It should not appear in the 4.9 kernel, https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=l...
it cause Can't set device: Protocol not supported Can't initialize device: Protocol not supported
# rtk_hciattach -n -s 115200 /dev/ttyS1 rtk_h5 Realtek Bluetooth init uart with init speed:115200, final_speed:115200, type:HCI UART H5 Realtek Bluetooth :Realtek hciattach version 2.5
Realtek Bluetooth :3-wire sync pattern resend : 1, len: 8
Realtek Bluetooth :Get SYNC Resp Pkt
Realtek Bluetooth :Get SYNC pkt-active mode
Realtek Bluetooth :3-wire config pattern resend : 1 , len: 10 Realtek Bluetooth :Get CONFG pkt-active mode
Realtek Bluetooth :Get CONFG resp pkt-active mode
Realtek Bluetooth :H5 init finished
Realtek Bluetooth :config offset(f4),length(8) Realtek Bluetooth :config baud rate to :4928002, hwflowcontrol:5f, 1 Realtek Bluetooth :config offset(27),length(1) Realtek Bluetooth :config offset(fe),length(1) Realtek Bluetooth :config offset(15b),length(4) Realtek Bluetooth :config offset(1e3),length(1) Realtek Bluetooth :Get config baud rate from config file:4928002 Realtek Bluetooth :Load FW OK Realtek Bluetooth :RTK send HCI_VENDOR_READ_RTK_ROM_VERISION_Command
Realtek Bluetooth :Received reliable seqno 0 from card Realtek Bluetooth :receive hci command complete event with command:1001
Realtek Bluetooth :Read RTK LMP version with Status:0 Realtek Bluetooth :gLmpVersion = 0x8723 Realtek Bluetooth :RTK send HCI_VENDOR_READ_RTK_ROM_VERISION_Command
Realtek Bluetooth :Received reliable seqno 1 from card Realtek Bluetooth :receive hci command complete event with command:fc6d
Realtek Bluetooth :Read RTK rom version with Status:0 Realtek Bluetooth :rtk_hw_cfg.eversion = 1 Realtek Bluetooth :rtk_get_fw_project_id: opcode 0, len 1, data 1 Realtek Bluetooth :fw_ver 0x1e3ee40e, patch_num 2 Realtek Bluetooth :patch length is 0x5e90 Realtek Bluetooth :start offset is 0x4f00 Realtek Bluetooth :fw: exists, config file: exists Realtek Bluetooth :baudrate in change speed command: 0x2 0x80 0x92 0x4
Realtek Bluetooth :Received reliable seqno 2 from card Realtek Bluetooth :receive hci command complete event with command:fc17
Realtek Bluetooth :Change BD Rate with status:0 Realtek Bluetooth :final_speed 1500000
Realtek Bluetooth :hw flow control enable Realtek Bluetooth :iEndIndex:96 iLastPacketLen:71 iAdditionpkt:4
Realtek Bluetooth :hci_download_patch tx_index:0 rx_index: -1
Realtek Bluetooth :Received reliable seqno 3 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 0
Realtek Bluetooth :hci_download_patch tx_index:1 rx_index: 0
Realtek Bluetooth :Received reliable seqno 4 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 1
Realtek Bluetooth :hci_download_patch tx_index:2 rx_index: 1
Realtek Bluetooth :Received reliable seqno 5 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 2
Realtek Bluetooth :hci_download_patch tx_index:3 rx_index: 2
Realtek Bluetooth :Received reliable seqno 6 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 3
Realtek Bluetooth :hci_download_patch tx_index:4 rx_index: 3
Realtek Bluetooth :Received reliable seqno 7 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 4
Realtek Bluetooth :hci_download_patch tx_index:5 rx_index: 4
Realtek Bluetooth :Received reliable seqno 0 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 5
Realtek Bluetooth :hci_download_patch tx_index:6 rx_index: 5
Realtek Bluetooth :Received reliable seqno 1 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 6
Realtek Bluetooth :hci_download_patch tx_index:7 rx_index: 6
Realtek Bluetooth :Received reliable seqno 2 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 7
Realtek Bluetooth :hci_download_patch tx_index:8 rx_index: 7
Realtek Bluetooth :Received reliable seqno 3 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 8
Realtek Bluetooth :hci_download_patch tx_index:9 rx_index: 8
Realtek Bluetooth :Received reliable seqno 4 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 9
Realtek Bluetooth :hci_download_patch tx_index:10 rx_index: 9
Realtek Bluetooth :Received reliable seqno 5 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 10
Realtek Bluetooth :hci_download_patch tx_index:11 rx_index: 10
Realtek Bluetooth :Received reliable seqno 6 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 11
Realtek Bluetooth :hci_download_patch tx_index:12 rx_index: 11
Realtek Bluetooth :Received reliable seqno 7 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 12
Realtek Bluetooth :hci_download_patch tx_index:13 rx_index: 12
Realtek Bluetooth :Received reliable seqno 0 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 13
Realtek Bluetooth :hci_download_patch tx_index:14 rx_index: 13
Realtek Bluetooth :Received reliable seqno 1 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 14
Realtek Bluetooth :hci_download_patch tx_index:15 rx_index: 14
Realtek Bluetooth :Received reliable seqno 2 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 15
Realtek Bluetooth :hci_download_patch tx_index:16 rx_index: 15
Realtek Bluetooth :Received reliable seqno 3 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 16
Realtek Bluetooth :hci_download_patch tx_index:17 rx_index: 16
Realtek Bluetooth :Received reliable seqno 4 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 17
Realtek Bluetooth :hci_download_patch tx_index:18 rx_index: 17
Realtek Bluetooth :Received reliable seqno 5 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 18
Realtek Bluetooth :hci_download_patch tx_index:19 rx_index: 18
Realtek Bluetooth :Received reliable seqno 6 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 19
Realtek Bluetooth :hci_download_patch tx_index:20 rx_index: 19
Realtek Bluetooth :Received reliable seqno 7 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 20
Realtek Bluetooth :hci_download_patch tx_index:21 rx_index: 20
Realtek Bluetooth :Received reliable seqno 0 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 21
Realtek Bluetooth :hci_download_patch tx_index:22 rx_index: 21
Realtek Bluetooth :Received reliable seqno 1 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 22
Realtek Bluetooth :hci_download_patch tx_index:23 rx_index: 22
Realtek Bluetooth :Received reliable seqno 2 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 23
Realtek Bluetooth :hci_download_patch tx_index:24 rx_index: 23
Realtek Bluetooth :Received reliable seqno 3 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 24
Realtek Bluetooth :hci_download_patch tx_index:25 rx_index: 24
Realtek Bluetooth :Received reliable seqno 4 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 25
Realtek Bluetooth :hci_download_patch tx_index:26 rx_index: 25
Realtek Bluetooth :Received reliable seqno 5 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 26
Realtek Bluetooth :hci_download_patch tx_index:27 rx_index: 26
Realtek Bluetooth :Received reliable seqno 6 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 27
Realtek Bluetooth :hci_download_patch tx_index:28 rx_index: 27
Realtek Bluetooth :Received reliable seqno 7 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 28
Realtek Bluetooth :hci_download_patch tx_index:29 rx_index: 28
Realtek Bluetooth :Received reliable seqno 0 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 29
Realtek Bluetooth :hci_download_patch tx_index:30 rx_index: 29
Realtek Bluetooth :Received reliable seqno 1 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 30
Realtek Bluetooth :hci_download_patch tx_index:31 rx_index: 30
Realtek Bluetooth :Received reliable seqno 2 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 31
Realtek Bluetooth :hci_download_patch tx_index:32 rx_index: 31
Realtek Bluetooth :Received reliable seqno 3 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 32
Realtek Bluetooth :hci_download_patch tx_index:33 rx_index: 32
Realtek Bluetooth :Received reliable seqno 4 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 33
Realtek Bluetooth :hci_download_patch tx_index:34 rx_index: 33
Realtek Bluetooth :Received reliable seqno 5 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 34
Realtek Bluetooth :hci_download_patch tx_index:35 rx_index: 34
Realtek Bluetooth :Received reliable seqno 6 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 35
Realtek Bluetooth :hci_download_patch tx_index:36 rx_index: 35
Realtek Bluetooth :Received reliable seqno 7 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 36
Realtek Bluetooth :hci_download_patch tx_index:37 rx_index: 36
Realtek Bluetooth :Received reliable seqno 0 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 37
Realtek Bluetooth :hci_download_patch tx_index:38 rx_index: 37
Realtek Bluetooth :Received reliable seqno 1 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 38
Realtek Bluetooth :hci_download_patch tx_index:39 rx_index: 38
Realtek Bluetooth :Received reliable seqno 2 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 39
Realtek Bluetooth :hci_download_patch tx_index:40 rx_index: 39
Realtek Bluetooth :Received reliable seqno 3 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 40
Realtek Bluetooth :hci_download_patch tx_index:41 rx_index: 40
Realtek Bluetooth :Received reliable seqno 4 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 41
Realtek Bluetooth :hci_download_patch tx_index:42 rx_index: 41
Realtek Bluetooth :Received reliable seqno 5 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 42
Realtek Bluetooth :hci_download_patch tx_index:43 rx_index: 42
Realtek Bluetooth :Received reliable seqno 6 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 43
Realtek Bluetooth :hci_download_patch tx_index:44 rx_index: 43
Realtek Bluetooth :Received reliable seqno 7 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 44
Realtek Bluetooth :hci_download_patch tx_index:45 rx_index: 44
Realtek Bluetooth :Received reliable seqno 0 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 45
Realtek Bluetooth :hci_download_patch tx_index:46 rx_index: 45
Realtek Bluetooth :Received reliable seqno 1 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 46
Realtek Bluetooth :hci_download_patch tx_index:47 rx_index: 46
Realtek Bluetooth :Received reliable seqno 2 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 47
Realtek Bluetooth :hci_download_patch tx_index:48 rx_index: 47
Realtek Bluetooth :Received reliable seqno 3 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 48
Realtek Bluetooth :hci_download_patch tx_index:49 rx_index: 48
Realtek Bluetooth :Received reliable seqno 4 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 49
Realtek Bluetooth :hci_download_patch tx_index:50 rx_index: 49
Realtek Bluetooth :Received reliable seqno 5 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 50
Realtek Bluetooth :hci_download_patch tx_index:51 rx_index: 50
Realtek Bluetooth :Received reliable seqno 6 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 51
Realtek Bluetooth :hci_download_patch tx_index:52 rx_index: 51
Realtek Bluetooth :Received reliable seqno 7 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 52
Realtek Bluetooth :hci_download_patch tx_index:53 rx_index: 52
Realtek Bluetooth :Received reliable seqno 0 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 53
Realtek Bluetooth :hci_download_patch tx_index:54 rx_index: 53
Realtek Bluetooth :Received reliable seqno 1 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 54
Realtek Bluetooth :hci_download_patch tx_index:55 rx_index: 54
Realtek Bluetooth :Received reliable seqno 2 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 55
Realtek Bluetooth :hci_download_patch tx_index:56 rx_index: 55
Realtek Bluetooth :Received reliable seqno 3 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 56
Realtek Bluetooth :hci_download_patch tx_index:57 rx_index: 56
Realtek Bluetooth :Received reliable seqno 4 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 57
Realtek Bluetooth :hci_download_patch tx_index:58 rx_index: 57
Realtek Bluetooth :Received reliable seqno 5 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 58
Realtek Bluetooth :hci_download_patch tx_index:59 rx_index: 58
Realtek Bluetooth :Received reliable seqno 6 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 59
Realtek Bluetooth :hci_download_patch tx_index:60 rx_index: 59
Realtek Bluetooth :Received reliable seqno 7 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 60
Realtek Bluetooth :hci_download_patch tx_index:61 rx_index: 60
Realtek Bluetooth :Received reliable seqno 0 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 61
Realtek Bluetooth :hci_download_patch tx_index:62 rx_index: 61
Realtek Bluetooth :Received reliable seqno 1 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 62
Realtek Bluetooth :hci_download_patch tx_index:63 rx_index: 62
Realtek Bluetooth :Received reliable seqno 2 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 63
Realtek Bluetooth :hci_download_patch tx_index:64 rx_index: 63
Realtek Bluetooth :Received reliable seqno 3 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 64
Realtek Bluetooth :hci_download_patch tx_index:65 rx_index: 64
Realtek Bluetooth :Received reliable seqno 4 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 65
Realtek Bluetooth :hci_download_patch tx_index:66 rx_index: 65
Realtek Bluetooth :Received reliable seqno 5 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 66
Realtek Bluetooth :hci_download_patch tx_index:67 rx_index: 66
Realtek Bluetooth :Received reliable seqno 6 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 67
Realtek Bluetooth :hci_download_patch tx_index:68 rx_index: 67
Realtek Bluetooth :Received reliable seqno 7 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 68
Realtek Bluetooth :hci_download_patch tx_index:69 rx_index: 68
Realtek Bluetooth :Received reliable seqno 0 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 69
Realtek Bluetooth :hci_download_patch tx_index:70 rx_index: 69
Realtek Bluetooth :Received reliable seqno 1 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 70
Realtek Bluetooth :hci_download_patch tx_index:71 rx_index: 70
Realtek Bluetooth :Received reliable seqno 2 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 71
Realtek Bluetooth :hci_download_patch tx_index:72 rx_index: 71
Realtek Bluetooth :Received reliable seqno 3 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 72
Realtek Bluetooth :hci_download_patch tx_index:73 rx_index: 72
Realtek Bluetooth :Received reliable seqno 4 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 73
Realtek Bluetooth :hci_download_patch tx_index:74 rx_index: 73
Realtek Bluetooth :Received reliable seqno 5 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 74
Realtek Bluetooth :hci_download_patch tx_index:75 rx_index: 74
Realtek Bluetooth :Received reliable seqno 6 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 75
Realtek Bluetooth :hci_download_patch tx_index:76 rx_index: 75
Realtek Bluetooth :Received reliable seqno 7 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 76
Realtek Bluetooth :hci_download_patch tx_index:77 rx_index: 76
Realtek Bluetooth :Received reliable seqno 0 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 77
Realtek Bluetooth :hci_download_patch tx_index:78 rx_index: 77
Realtek Bluetooth :Received reliable seqno 1 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 78
Realtek Bluetooth :hci_download_patch tx_index:79 rx_index: 78
Realtek Bluetooth :Received reliable seqno 2 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 79
Realtek Bluetooth :hci_download_patch tx_index:80 rx_index: 79
Realtek Bluetooth :Received reliable seqno 3 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 80
Realtek Bluetooth :hci_download_patch tx_index:81 rx_index: 80
Realtek Bluetooth :Received reliable seqno 4 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 81
Realtek Bluetooth :hci_download_patch tx_index:82 rx_index: 81
Realtek Bluetooth :Received reliable seqno 5 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 82
Realtek Bluetooth :hci_download_patch tx_index:83 rx_index: 82
Realtek Bluetooth :Received reliable seqno 6 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 83
Realtek Bluetooth :hci_download_patch tx_index:84 rx_index: 83
Realtek Bluetooth :Received reliable seqno 7 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 84
Realtek Bluetooth :hci_download_patch tx_index:85 rx_index: 84
Realtek Bluetooth :Received reliable seqno 0 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 85
Realtek Bluetooth :hci_download_patch tx_index:86 rx_index: 85
Realtek Bluetooth :Received reliable seqno 1 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 86
Realtek Bluetooth :hci_download_patch tx_index:87 rx_index: 86
Realtek Bluetooth :Received reliable seqno 2 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 87
Realtek Bluetooth :hci_download_patch tx_index:88 rx_index: 87
Realtek Bluetooth :Received reliable seqno 3 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 88
Realtek Bluetooth :hci_download_patch tx_index:89 rx_index: 88
Realtek Bluetooth :Received reliable seqno 4 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 89
Realtek Bluetooth :hci_download_patch tx_index:90 rx_index: 89
Realtek Bluetooth :Received reliable seqno 5 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 90
Realtek Bluetooth :hci_download_patch tx_index:91 rx_index: 90
Realtek Bluetooth :Received reliable seqno 6 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 91
Realtek Bluetooth :hci_download_patch tx_index:92 rx_index: 91
Realtek Bluetooth :Received reliable seqno 7 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 92
Realtek Bluetooth :hci_download_patch tx_index:93 rx_index: 92
Realtek Bluetooth :Received reliable seqno 0 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 93
Realtek Bluetooth :hci_download_patch tx_index:94 rx_index: 93
Realtek Bluetooth :Received reliable seqno 1 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 94
Realtek Bluetooth :hci_download_patch tx_index:95 rx_index: 94
Realtek Bluetooth :Received reliable seqno 2 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 95
Realtek Bluetooth :hci_download_patch tx_index:96 rx_index: 95
Realtek Bluetooth :Received reliable seqno 3 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 96
Realtek Bluetooth :hci_download_patch tx_index:97 rx_index: 96
Realtek Bluetooth :Received reliable seqno 4 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 97
Realtek Bluetooth :hci_download_patch tx_index:98 rx_index: 97
Realtek Bluetooth :Received reliable seqno 5 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 98
Realtek Bluetooth :hci_download_patch tx_index:99 rx_index: 98
Realtek Bluetooth :Received reliable seqno 6 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 99
Realtek Bluetooth :Send FW last command Realtek Bluetooth :hci_download_patch tx_index:100 rx_index: 99
Realtek Bluetooth :Received reliable seqno 7 from card Realtek Bluetooth :rtk_hw_cfg.rx_index 100
Realtek Bluetooth :Init Process finished Can't set device: Protocol not supported Can't initialize device: Protocol not supported