Until 2.6.28 I use hci_usb driver to bluetooth adapter. In 2.6.29-rc1
it doesn't exists, so I switch to btusb module, and I have problem
connect with another machine, dmesg shows this message:
[ 101.468638] hci_cmd_task: hci0 command tx timeout
[ 699.328112] hci_cmd_task: hci0 command tx timeout
How to check what cause problems with communication?
Contents /proc/bus/usb/devicec, dmesg, lsusb, config:
http://www.unixy.pl/maciek/download/kernel/2.6.29-rc1/bluetooth/
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Maciej Rutecki
http://www.maciek.unixy.pl
2009/1/13 Maciej Rutecki <[email protected]>:
> Until 2.6.28 I use hci_usb driver to bluetooth adapter. In 2.6.29-rc1
> it doesn't exists, so I switch to btusb module, and I have problem
> connect with another machine, dmesg shows this message:
> [ 101.468638] hci_cmd_task: hci0 command tx timeout
> [ 699.328112] hci_cmd_task: hci0 command tx timeout
>
> How to check what cause problems with communication?
>
> Contents /proc/bus/usb/devicec, dmesg, lsusb, config:
> http://www.unixy.pl/maciek/download/kernel/2.6.29-rc1/bluetooth/
>
hcidump in local interface
local hci0: 00:11:67:CA:45:0E
remote hci0: 00:16:41:88:A0:1B
Connection from local to remote (I use kdebluetoothd):
root@zlom:/home/maciek# hcidump -V -i hci0
HCI sniffer - Bluetooth packet analyzer ver 1.42
device: hci0 snap_len: 1028 filter: 0xffffffff
< HCI Command: Inquiry (0x01|0x0001) plen 5
lap 0x9e8b33 len 8 num 0
> HCI Event: Command Status (0x0f) plen 4
Inquiry (0x01|0x0001) status 0x00 ncmd 1
> HCI Event: Inquiry Result with RSSI (0x22) plen 15
bdaddr 00:16:41:88:A0:1B mode 2 clkoffset 0x7468 class 0x100000 rssi -76
> HCI Event: Inquiry Complete (0x01) plen 1
status 0x00
< HCI Command: Create Connection (0x01|0x0005) plen 13
bdaddr 00:16:41:88:A0:1B ptype 0xcc18 rswitch 0x01 clkoffset 0x7468 (valid)
Packet type: DM1 DM3 DM5 DH1 DH3 DH5
< HCI Command: Create Connection Cancel (0x01|0x0008) plen 6
bdaddr 00:16:41:88:A0:1B
> HCI Event: Command Complete (0x0e) plen 10
Create Connection Cancel (0x01|0x0008) ncmd 1
status 0x02 bdaddr 1B:01:A5:B5:88:EC
Error: Unknown Connection Identifier
>From remote to local:
root@zlom:/home/maciek# hcidump -V -i hci0
HCI sniffer - Bluetooth packet analyzer ver 1.42
device: hci0 snap_len: 1028 filter: 0xffffffff
> HCI Event: Connect Request (0x04) plen 10
bdaddr 00:16:41:88:A0:1B class 0x100000 type ACL
< HCI Command: Accept Connection Request (0x01|0x0009) plen 7
bdaddr 00:16:41:88:A0:1B role 0x01
Role: Slave
> HCI Event: Connect Complete (0x03) plen 11
status 0x10 handle 0 bdaddr 00:16:41:88:A0:1B type ACL encrypt 0x00
Error: Connection Accept Timeout Exceeded
--
Maciej Rutecki
http://www.maciek.unixy.pl