Bluetooth Headset (Only for MONO test)

 hi everyone

 I'm experimenting with the i-tech BlueBAND headset with bluez, this headset support HS,HF,A2DP and AVRCP profile, But for me, I only want to test the MONO for telephoning. it doesnt work well now.

toolchain: kernel 2.6.10, bluez-libs/utils-3.12, CSR BC4 UART interface
(the version of the toolchain is old, but I must work on that)

I will definitely test HeadSet profile, so btsco/snd-bt-sco are not included. and I use the hstest in bluez-utils. hcid,hciattach,sdpd are always work well.

when send audio to headset:

[root@root bin]$hstest play 1.wav 00:0D:3C:E8:1A:AC 2 &
Voice setting: 0x0060
RFCOMM channel connected
SCO audio channel connected (handle 45, mtu 64)
AT+VGS=11 
AT+CKPD=200
AT+CKPD=200
AT+CKPD=200
AT+VGS=12
AT+VGS=11
AT+VGS=10
AT+VGS=11
AT+VGS=12
AT+CKPD=200

Here the headset beeps (it does that everytime a connection is initiated) and I can hear only some noise through it. By pressing one of the buttons on the headset I even see the AT-comands which are submitteted via the rfcomm channel. But no audio. A hcidump during the connection procedure shows just a normal looking bunch of hci and acl commands and events, but no sco packets whatsoever.

here the SCO is connected
[root@root bin]$hcitool con
Connections:
        < SCO 00:0D:3C:E8:1A:AC handle 45 state 1 lm SLAVE 
        < ACL 00:0D:3C:E8:1A:AC handle 43 state 1 lm MASTER ENCRYPT 


Am I doing something wrong or missing a step? 



Thanks for your help and best regards

Tony

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