hi,
i have some problems with getting the ``Freedom Universal Keyboard'' to
work. after authentication the keyboard is automatically trying to
connect to my computer. however, the connections never work. heres is
the output of ``hcidump -V'' (using bluez-utils-3.10.1 and kernel
2.6.16.13):
> HCI Event: Connect Request (0x04) plen 10
    bdaddr 00:0B:0D:85:30:0B class 0x002540 type ACL
< HCI Command: Accept Connection Request (0x01|0x0009) plen 7
    bdaddr 00:0B:0D:85:30:0B role 0x01
    Role: Slave
  .
  .
  .
> ACL data: handle 42 flags 0x02 dlen 12
    L2CAP(s): Connect req: psm 17 scid 0x0040
< ACL data: handle 42 flags 0x02 dlen 16
    L2CAP(s): Connect rsp: dcid 0x0040 scid 0x0040 result 0 status 0
      Connection successful
> HCI Event: Number of Completed Packets (0x13) plen 5
    handle 42 packets 1
> ACL data: handle 42 flags 0x02 dlen 16
    L2CAP(s): Config req: dcid 0x0040 flags 0x00 clen 4
      MTU 48
< ACL data: handle 42 flags 0x02 dlen 14
    L2CAP(s): Config rsp: scid 0x0040 flags 0x00 result 0 clen 0
      Success
< ACL data: handle 42 flags 0x02 dlen 16
    L2CAP(s): Config req: dcid 0x0040 flags 0x00 clen 4
      MTU 48
> HCI Event: Number of Completed Packets (0x13) plen 5
    handle 42 packets 1
> HCI Event: Number of Completed Packets (0x13) plen 5
    handle 42 packets 1
> ACL data: handle 42 flags 0x02 dlen 18
    L2CAP(s): Config rsp: scid 0x0040 flags 0x00 result 1 clen 4
      MTU 128
< ACL data: handle 42 flags 0x02 dlen 16
    L2CAP(s): Config req: dcid 0x0040 flags 0x00 clen 4
      MTU 48
> HCI Event: Number of Completed Packets (0x13) plen 5
    handle 42 packets 1
> ACL data: handle 42 flags 0x02 dlen 18
    L2CAP(s): Config rsp: scid 0x0040 flags 0x00 result 1 clen 4
      MTU 128
< ACL data: handle 42 flags 0x02 dlen 12
    L2CAP(s): Disconn req: dcid 0x0040 scid 0x0040
> HCI Event: Number of Completed Packets (0x13) plen 5
    handle 42 packets 1
> ACL data: handle 42 flags 0x02 dlen 12
    L2CAP(s): Disconn rsp: dcid 0x0040 scid 0x0040
< HCI Command: Disconnect (0x01|0x0006) plen 3
    handle 42 reason 0x13
    Reason: Remote User Terminated Connection
> HCI Event: Command Status (0x0f) plen 4
    Disconnect (0x01|0x0006) status 0x00 ncmd 1
> HCI Event: Disconn Complete (0x05) plen 4
    status 0x00 handle 42 reason 0x16
    Reason: Connection Terminated by Local Host


it seems to have problems in negotiating the mtu size. so i tried and
commented out the lines in hidd which set the preferred mtu size,
  opts.imtu = HIDP_DEFAULT_MTU;
  opts.omtu = HIDP_DEFAULT_MTU;

with this version of hidd the connection works perfectly, and even
keystrokes are transferred, as can be seen in the hcidump:
  .
  .
  .
> ACL data: handle 43 flags 0x02 dlen 12
    L2CAP(s): Connect req: psm 17 scid 0x0040
< ACL data: handle 43 flags 0x02 dlen 16
    L2CAP(s): Connect rsp: dcid 0x0040 scid 0x0040 result 0 status 0
      Connection successful
> HCI Event: Number of Completed Packets (0x13) plen 5
    handle 43 packets 1
> ACL data: handle 43 flags 0x02 dlen 16
    L2CAP(s): Config req: dcid 0x0040 flags 0x00 clen 4
      MTU 48
< ACL data: handle 43 flags 0x02 dlen 14
    L2CAP(s): Config rsp: scid 0x0040 flags 0x00 result 0 clen 0
      Success
< ACL data: handle 43 flags 0x02 dlen 16
    L2CAP(s): Config req: dcid 0x0040 flags 0x00 clen 4
      MTU 0
> HCI Event: Number of Completed Packets (0x13) plen 5
    handle 43 packets 1
> HCI Event: Number of Completed Packets (0x13) plen 5
    handle 43 packets 1
> ACL data: handle 43 flags 0x02 dlen 14
    L2CAP(s): Config rsp: scid 0x0040 flags 0x00 result 0 clen 0
      Success
> ACL data: handle 43 flags 0x02 dlen 12
    L2CAP(s): Connect req: psm 19 scid 0x0041
< ACL data: handle 43 flags 0x02 dlen 16
    L2CAP(s): Connect rsp: dcid 0x0041 scid 0x0041 result 0 status 0
      Connection successful
> HCI Event: Number of Completed Packets (0x13) plen 5
    handle 43 packets 1
> ACL data: handle 43 flags 0x02 dlen 16
    L2CAP(s): Config req: dcid 0x0041 flags 0x00 clen 4
      MTU 48
< ACL data: handle 43 flags 0x02 dlen 14
    L2CAP(s): Config rsp: scid 0x0041 flags 0x00 result 0 clen 0
      Success
< ACL data: handle 43 flags 0x02 dlen 16
    L2CAP(s): Config req: dcid 0x0041 flags 0x00 clen 4
      MTU 0
> HCI Event: Number of Completed Packets (0x13) plen 5
    handle 43 packets 1
> HCI Event: Number of Completed Packets (0x13) plen 5
    handle 43 packets 1
> ACL data: handle 43 flags 0x02 dlen 14
    L2CAP(s): Config rsp: scid 0x0041 flags 0x00 result 0 clen 0
      Success
< ACL data: handle 43 flags 0x02 dlen 5
    L2CAP(d): cid 0x0040 len 1 [psm 17]
      HIDP: Set protocol: Boot protocol
< ACL data: handle 43 flags 0x02 dlen 7
    L2CAP(d): cid 0x0041 len 3 [psm 19]
      HIDP: Data: Output report
> ACL data: handle 43 flags 0x02 dlen 5
    L2CAP(d): cid 0x0040 len 1 [psm 17]
      HIDP: Handshake: Successful
> HCI Event: Number of Completed Packets (0x13) plen 5
    handle 43 packets 1
> HCI Event: Number of Completed Packets (0x13) plen 5
    handle 43 packets 1
> HCI Event: Mode Change (0x14) plen 6
    status 0x00 handle 43 mode 0x02 interval 128
    Mode: Sniff
> ACL data: handle 43 flags 0x02 dlen 13
    L2CAP(d): cid 0x0041 len 9 [psm 19]
      HIDP: Data: Input report
> HCI Event: Mode Change (0x14) plen 6
    status 0x00 handle 43 mode 0x00 interval 0
    Mode: Active
> ACL data: handle 43 flags 0x02 dlen 13
    L2CAP(d): cid 0x0041 len 9 [psm 19]
      HIDP: Data: Input report
> ACL data: handle 43 flags 0x02 dlen 13
    L2CAP(d): cid 0x0041 len 9 [psm 19]
      HIDP: Data: Input report
> ACL data: handle 43 flags 0x02 dlen 13
    L2CAP(d): cid 0x0041 len 9 [psm 19]
      HIDP: Data: Input report
> ACL data: handle 43 flags 0x02 dlen 13
    L2CAP(d): cid 0x0041 len 9 [psm 19]
      HIDP: Data: Input report
> ACL data: handle 43 flags 0x02 dlen 13
    L2CAP(d): cid 0x0041 len 9 [psm 19]
      HIDP: Data: Input report
> ACL data: handle 43 flags 0x02 dlen 13
    L2CAP(d): cid 0x0041 len 9 [psm 19]
      HIDP: Data: Input report
> ACL data: handle 43 flags 0x02 dlen 13
    L2CAP(d): cid 0x0041 len 9 [psm 19]
      HIDP: Data: Input report
> ACL data: handle 43 flags 0x02 dlen 13
    L2CAP(d): cid 0x0041 len 9 [psm 19]
      HIDP: Data: Input report
> ACL data: handle 43 flags 0x02 dlen 13
    L2CAP(d): cid 0x0041 len 9 [psm 19]
      HIDP: Data: Input report
> ACL data: handle 43 flags 0x02 dlen 13
    L2CAP(d): cid 0x0041 len 9 [psm 19]
      HIDP: Data: Input report
> ACL data: handle 43 flags 0x02 dlen 13
    L2CAP(d): cid 0x0041 len 9 [psm 19]
      HIDP: Data: Input report
> ACL data: handle 43 flags 0x02 dlen 13
    L2CAP(d): cid 0x0041 len 9 [psm 19]
      HIDP: Data: Input report
> ACL data: handle 43 flags 0x02 dlen 13
    L2CAP(d): cid 0x0041 len 9 [psm 19]
      HIDP: Data: Input report
> ACL data: handle 43 flags 0x02 dlen 13
    L2CAP(d): cid 0x0041 len 9 [psm 19]
      HIDP: Data: Input report


hcidump -X also shows, that the packets indeed contain keycodes.
the device is correctly registered in /proc/bus/input/devices and in
/sys/class/input/input4. however, the events never arrive in
/dev/input/event4. the debugging messages of the hidp kernel module
suggest, that they dont even arrive at this module:
  May 25 15:57:38 ed007 kernel: Bluetooth: HIDP (Human Interface
                  Emulation) ver 1.1
  May 25 16:06:13 ed007 hidd[6345]: Bluetooth HID daemon
  May 25 16:06:24 ed007 hcid[5321]: link_key_request
                  (sba=00:03:7A:F0:73:B5, dba=00:0B:0D:85:30:0B)
  May 25 16:06:24 ed007 hidd[6345]: New HID device 00:0B:0D:85:30:0B
                  (Bluetooth Kbd)
  May 25 16:06:24 ed007 kernel: hidp_add_connection:
  May 25 16:06:24 ed007 kernel: __hidp_get_session:
  May 25 16:06:24 ed007 kernel: hidp_add_connection: ctrl mtu 0 intr
                  mtu 0
  May 25 16:06:24 ed007 kernel: input: Bluetooth HID Boot Protocol
                  Device as /class/input/input4
  May 25 16:06:24 ed007 kernel: __hidp_send_ctrl_message: session
                  d972f640 data 00000000 size 0
  May 25 16:06:24 ed007 kernel: hidp_input_event: input d4a1e800 type 17
                  code 0 value 0
  May 25 16:06:24 ed007 kernel: hidp_session: session d972f640
  May 25 16:06:24 ed007 kernel: hidp_process_transmit: session d972f640
  May 25 16:06:24 ed007 kernel: hidp_send_frame: sock db45bb40 data
                  e4fab800 len 1
  May 25 16:06:24 ed007 kernel: hidp_send_frame: sock db45b840 data
                  eca4ba00 len 3
  May 25 16:06:24 ed007 kernel: hidp_process_transmit: session d972f640


does anyone have a clue why the events get lost on their way? or
something on this mtu problem?

thanks,
  konrad