Re: [Bluez-users] Can't connect RFCOMM channel: Resource temporarily unavailable

[Swathi Mathur80 <swathi_mathur80@yahoo.com>]

Hello Marcel,
As per your request i have pasted the result of
“hciconfig -a” and “hcidump -X -V”. Along with it
someother information which i thought might be helpful
in debugging.

When i first started my pc if found that hcid demon
was not running. So i re-started the bluetooth
services and made the hcid to run
-------------------------------------------------------
[root@localhost bluetooth]# /etc/init.d/bluetooth
status
hcid is stopped
sdpd (pid 1729) is running...
[root@localhost bluetooth]# /etc/init.d/bluetooth
restart
Stopping Bluetooth services:                          
    [FAILED]
Starting Bluetooth services:                          
    [  OK  ]
[root@localhost bluetooth]# /etc/init.d/bluetooth
restart
Stopping Bluetooth services:                          
    [  OK  ]
Starting Bluetooth services:                          
    [  OK  ]
-------------------------------------------------------

The headset is being put in the pairing mode. Hcidump
-X -V is running in the background. I execute the
btsco command
-------------------------------------------------------
[root@localhost /]# btsco 00:08:C6:3E:54:2C -v -r
btsco v0.4c
Device is 1:0
Error: Failed to connect to SDP server: Function not
implemented
Assuming channel 2

Voice setting: 0x0060
Can't connect RFCOMM channel: Resource temporarily
unavailable
-------------------------------------------------------

output of hcidump -X -V is as below
-------------------------------------------------------
< HCI Command: Create Connection (0x01|0x0005) plen 13
    bdaddr 00:08:C6:3E:54:2C ptype 0xcc18 rswitch 0x01
clkoffset 0x0000
    Packet type: DM1 DM3 DM5 DH1 DH3 DH5
> HCI Event: Command Status (0x0f) plen 4
    Create Connection (0x01|0x0005) status 0x00 ncmd 1
> HCI Event: PIN Code Request (0x16) plen 6
    bdaddr 00:08:C6:3E:54:2C
> HCI Event: Connect Complete (0x03) plen 11
    status 0x22 handle 41 bdaddr 00:08:C6:3E:54:2C
type ACL encrypt 0x00
    Error: LMP Response Timeout
< HCI Command: Read Voice Setting (0x03|0x0025) plen 0
> HCI Event: Command Complete (0x0e) plen 6
    Read Voice Setting (0x03|0x0025) ncmd 1
    status 0x00 voice setting 0x0060
< HCI Command: Create Connection (0x01|0x0005) plen 13
    bdaddr 00:08:C6:3E:54:2C ptype 0xcc18 rswitch 0x01
clkoffset 0x0000
    Packet type: DM1 DM3 DM5 DH1 DH3 DH5
> HCI Event: Command Status (0x0f) plen 4
    Create Connection (0x01|0x0005) status 0x00 ncmd 1
> HCI Event: PIN Code Request (0x16) plen 6
    bdaddr 00:08:C6:3E:54:2C
> HCI Event: Connect Complete (0x03) plen 11
    status 0x22 handle 42 bdaddr 00:08:C6:3E:54:2C
type ACL encrypt 0x00
    Error: LMP Response Timeout
-------------------------------------------------------
The output of “hciconfig -a” is as below
-------------------------------------------------------
[root@localhost bluetooth]# hciconfig -a
hci0:   Type: USB
        BD Address: 00:10:60:A5:A7:61 ACL MTU: 192:8
SCO MTU: 64:8
        UP RUNNING PSCAN ISCAN
        RX bytes:181 acl:0 sco:0 events:23 errors:0
        TX bytes:94 acl:0 sco:0 commands:18 errors:0
        Features: 0xff 0xff 0x0f 0x00 0x00 0x00 0x00
0x00
        Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2
HV3
        Link policy: RSWITCH HOLD SNIFF PARK
        Link mode: SLAVE ACCEPT
        Name: 'localhost.localdomain-0'
        Class: 0x000000
        Service Classes: Unspecified
        Device Class: Miscellaneous,
        HCI Ver: 1.1 (0x1) HCI Rev: 0x20d LMP Ver: 1.1
(0x1) LMP Subver: 0x20d
        Manufacturer: Cambridge Silicon Radio (10)
-------------------------------------------------------

Output of /etc/init.d/bluetooth status
-------------------------------------------------------
[root@localhost mail]# /etc/init.d/bluetooth status
hcid (pid 3136) is running...
sdpd (pid 3140) is running...
-------------------------------------------------------
output of “ps x”
 2714 ?        Ss     0:00 hcid: processing events
 2716 ?        Ss     0:00 sdpd
-------------------------------------------------------
I got 
You have new mail in /var/spool/mail/root after
executing “btsco xxxx“ command and i have enclosed the
mail. I don’t know whether i will be helpful in
debugging. Basically what i noticed was 2 things one
saying

 --------------------- Connections (secure-log) Begin
-----------------
 **Unmatched Entries**
 userhelper[3460]: running
'/usr/share/hwbrowser/hwbrowser' with root privileges
on behalf of 'root'
 userhelper[3599]: running
'/usr/share/hwbrowser/hwbrowser' with root privileges
on behalf of 'root'
---------------------- Connections (secure-log) End
--------------------

 --------------------- SSHD Begin
------------------------
 SSHD Killed: 6 Time(s)
 SSHD Started: 6 Time(s)
 Failed to bind:
    0.0.0.0 port 22 (Address already in use) : 6
Time(s)
 ---------------------- SSHD End
-------------------------

My apologies for such a long  mail. 
Warm Regards,
Swathi










--- Marcel Holtmann <marcel@holtmann.org> wrote:

> Hi Swathi,
> 
> > I have installed all the bluez-packages and bt_sco
> > module as a root. All the commands which are
> trying to
> > establish a connection to my headset are being
> > executed as a root. I login with root privilages
> and
> > at this point if 
> > 
> > i check the status of hcid it was showing as
> stopped.
> > (below output)
> >
>
------------------------------------------------------
> > [root@localhost /]# /etc/init.d/bluetooth status
> > hcid is stopped
> > sdpd (pid 1725) is running...
> >
>
------------------------------------------------------
> > 
> > So i restarted the bluetooth and for the first
> time i
> > got the below msg
> >
>
------------------------------------------------------
> > [root@localhost /]# /etc/init.d/bluetooth restart
> > Stopping Bluetooth services:                      
>    
> >     [FAILED]
> > Starting Bluetooth services:                      
>    
> >     [  OK  ]
> >
>
------------------------------------------------------
> > 
> > For the second time, i was able to successfully
> stop
> > and start BT services
> >
>
------------------------------------------------------
> > [root@localhost /]# /etc/init.d/bluetooth restart
> > Stopping Bluetooth services:                      
>    
> >     [  OK  ]
> > Starting Bluetooth services:                      
>    
> >     [  OK  ]
> >
>
------------------------------------------------------
> > 
> > cross checking the BT status again
> >
>
------------------------------------------------------
> > [root@localhost /]# /etc/init.d/bluetooth status
> > hcid (pid 2743) is running...
> > sdpd (pid 2745) is running...
> >
>
------------------------------------------------------
> 
> check this with "ps x" as root. I don't trust it,
> because the hcidump
> output is telling me something different. Show me
> also the output of
> "hciconfig -a".
> 
> Regards
> 
> Marcel
> 
> 
> 
> 
>
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