All,
I was wondering is anyone might have an idea what would be causing devices
to be unable to connect to a Bluetooth hub I have built using BlueZ on a
small single board computer. Generally, it works extremely well, but on
occasion this Bluetooth hub does the following when a client tries to
connect to it. My kernel is 2.6.14.6-mh2, with bluez-libs-2.25 and the
latest bluez utils .
tail -30 /var/log/messages
May 3 09:47:56 OBBTHub hcid[4114]: link_key_notify (sba=00:02:72:C1:F1:07,
dba=00:0A:3A:55:05:D5)
May 3 09:48:53 OBBTHub hcid[4114]: link_key_request (sba=00:02:72:C1:F1:07,
dba=00:0A:3A:55:05:D5)
May 3 09:49:57 OBBTHub hcid[4114]: pin_code_request (sba=00:02:72:C1:F1:07,
dba=00:0A:3A:55:05:D5)
May 3 09:49:57 OBBTHub hcid[4114]: link_key_notify (sba=00:02:72:C1:F1:07,
dba=00:0A:3A:55:05:D5)
May 3 09:50:54 OBBTHub hcid[4114]: link_key_request (sba=00:02:72:C1:F1:07,
dba=00:0A:3A:55:05:D5)
May 3 09:51:58 OBBTHub hcid[4114]: pin_code_request (sba=00:02:72:C1:F1:07,
dba=00:0A:3A:55:05:D5)
May 3 09:51:58 OBBTHub hcid[4114]: link_key_notify (sba=00:02:72:C1:F1:07,
dba=00:0A:3A:55:05:D5)
May 3 09:52:55 OBBTHub hcid[4114]: link_key_request (sba=00:02:72:C1:F1:07,
dba=00:0A:3A:55:05:D5)
May 3 09:54:00 OBBTHub hcid[4114]: pin_code_request (sba=00:02:72:C1:F1:07,
dba=00:0A:3A:55:05:D5)
May 3 09:54:01 OBBTHub hcid[4114]: link_key_notify (sba=00:02:72:C1:F1:07,
dba=00:0A:3A:55:05:D5)
May 3 09:54:58 OBBTHub hcid[4114]: link_key_request (sba=00:02:72:C1:F1:07,
dba=00:0A:3A:55:05:D5)
May 3 09:56:02 OBBTHub hcid[4114]: pin_code_request (sba=00:02:72:C1:F1:07,
dba=00:0A:3A:55:05:D5)
May 3 09:56:03 OBBTHub hcid[4114]: link_key_notify (sba=00:02:72:C1:F1:07,
dba=00:0A:3A:55:05:D5)
May 3 09:57:00 OBBTHub hcid[4114]: link_key_request (sba=00:02:72:C1:F1:07,
dba=00:0A:3A:55:05:D5)
May 3 09:58:05 OBBTHub hcid[4114]: pin_code_request (sba=00:02:72:C1:F1:07,
dba=00:0A:3A:55:05:D5)
When I run hcidump on the hub that I have built, I get . Please note the
"Connection refused - no resources available" that is about half way through
the file.
HCI sniffer - Bluetooth packet analyzer ver 1.29
device: hci0 snap_len: 1028 filter: 0xffffffff
> HCI Event: Connect Request (0x04) plen 10
< HCI Command: Accept Connection Request (0x01|0x0009) plen 7
> HCI Event: Command Status (0x0f) plen 4
> HCI Event: PIN Code Request (0x16) plen 6
< HCI Command: PIN Code Request Reply (0x01|0x000d) plen 23
> HCI Event: Command Complete (0x0e) plen 10
> HCI Event: Link Key Notification (0x18) plen 23
> HCI Event: Connect Complete (0x03) plen 11
< HCI Command: Write Link Policy Settings (0x02|0x000d) plen 4
> HCI Event: Command Complete (0x0e) plen 6
< HCI Command: Change Connection Packet Type (0x01|0x000f) plen 4
> HCI Event: Command Status (0x0f) plen 4
> ACL data: handle 7 flags 0x02 dlen 12
L2CAP(s): Connect req: psm 1 scid 0x0040
< ACL data: handle 7 flags 0x02 dlen 16
L2CAP(s): Connect rsp: dcid 0x0040 scid 0x0040 result 0 status 0
Connection successful
> HCI Event: Max Slots Change (0x1b) plen 3
> HCI Event: Number of Completed Packets (0x13) plen 5
< ACL data: handle 7 flags 0x02 dlen 12
L2CAP(s): Disconn req: dcid 0x0040 scid 0x0040
> HCI Event: Number of Completed Packets (0x13) plen 5
> HCI Event: Disconn Complete (0x05) plen 4
> HCI Event: Connect Request (0x04) plen 10
< HCI Command: Accept Connection Request (0x01|0x0009) plen 7
> HCI Event: Command Status (0x0f) plen 4
> HCI Event: Link Key Request (0x17) plen 6
< HCI Command: Link Key Request Reply (0x01|0x000b) plen 22
> HCI Event: Command Complete (0x0e) plen 10
> HCI Event: Connect Complete (0x03) plen 11
< HCI Command: Write Link Policy Settings (0x02|0x000d) plen 4
> HCI Event: Command Complete (0x0e) plen 6
< HCI Command: Change Connection Packet Type (0x01|0x000f) plen 4
> HCI Event: Command Status (0x0f) plen 4
> ACL data: handle 6 flags 0x02 dlen 12
L2CAP(s): Connect req: psm 1 scid 0x0040
< ACL data: handle 6 flags 0x02 dlen 16
L2CAP(s): Connect rsp: dcid 0x0040 scid 0x0040 result 0 status 0
Connection successful
> HCI Event: Max Slots Change (0x1b) plen 3
> HCI Event: Number of Completed Packets (0x13) plen 5
> ACL data: handle 6 flags 0x02 dlen 12
L2CAP(s): Connect req: psm 1 scid 0x0040
< ACL data: handle 6 flags 0x02 dlen 16
L2CAP(s): Connect rsp: dcid 0x0000 scid 0x0040 result 4 status 0
Connection refused - no resources available
> HCI Event: Number of Completed Packets (0x13) plen 5
< ACL data: handle 6 flags 0x02 dlen 12
L2CAP(s): Disconn req: dcid 0x0040 scid 0x0040
> HCI Event: Number of Completed Packets (0x13) plen 5
> HCI Event: Disconn Complete (0x05) plen 4
> HCI Event: Connect Request (0x04) plen 10
< HCI Command: Accept Connection Request (0x01|0x0009) plen 7
> HCI Event: Command Status (0x0f) plen 4
> HCI Event: PIN Code Request (0x16) plen 6
< HCI Command: PIN Code Request Reply (0x01|0x000d) plen 23
> HCI Event: Command Complete (0x0e) plen 10
> HCI Event: Link Key Notification (0x18) plen 23
> HCI Event: Connect Complete (0x03) plen 11
< HCI Command: Write Link Policy Settings (0x02|0x000d) plen 4
> HCI Event: Command Complete (0x0e) plen 6
< HCI Command: Change Connection Packet Type (0x01|0x000f) plen 4
> ACL data: handle 7 flags 0x02 dlen 12
L2CAP(s): Connect req: psm 1 scid 0x0040
< ACL data: handle 7 flags 0x02 dlen 16
L2CAP(s): Connect rsp: dcid 0x0040 scid 0x0040 result 0 status 0
Connection successful
> HCI Event: Command Status (0x0f) plen 4
> HCI Event: Max Slots Change (0x1b) plen 3
> HCI Event: Number of Completed Packets (0x13) plen 5
< ACL data: handle 7 flags 0x02 dlen 12
L2CAP(s): Disconn req: dcid 0x0040 scid 0x0040
> HCI Event: Number of Completed Packets (0x13) plen 5
> HCI Event: Disconn Complete (0x05) plen 4
> HCI Event: Connect Request (0x04) plen 10
< HCI Command: Accept Connection Request (0x01|0x0009) plen 7
> HCI Event: Command Status (0x0f) plen 4
> HCI Event: Link Key Request (0x17) plen 6
< HCI Command: Link Key Request Reply (0x01|0x000b) plen 22
> HCI Event: Command Complete (0x0e) plen 10
> HCI Event: Connect Complete (0x03) plen 11
< HCI Command: Write Link Policy Settings (0x02|0x000d) plen 4
> HCI Event: Command Complete (0x0e) plen 6
< HCI Command: Change Connection Packet Type (0x01|0x000f) plen 4
> HCI Event: Command Status (0x0f) plen 4
> ACL data: handle 6 flags 0x02 dlen 12
L2CAP(s): Connect req: psm 1 scid 0x0040
< ACL data: handle 6 flags 0x02 dlen 16
L2CAP(s): Connect rsp: dcid 0x0040 scid 0x0040 result 0 status 0
Connection successful
> HCI Event: Max Slots Change (0x1b) plen 3
> HCI Event: Number of Completed Packets (0x13) plen 5
Any ideas ?
Thanks,
Dave