My case is as fllows:
I use two CSR(Bluecore2) modlues on two arm platforms respectively . And now,I can create ACL and SCO connection，both l2test and scotest run well.Even,I can transmit files using the program obex_test.
But still,
1>I don't know how to transmit acl data such as hexadecimal data. Can I use "hcitool cmd"??If I can,what is the hci command?
2>I just want to transmit voice data through bluetooth modules so that I can talk with others using microphone.And I connected a MC145483 Codes throught PCM interface yesterady.But I have no idea about how to do now.which profile should I use? sdptool add Headset?I think it's not the right one! And if I add the right profile,what should I do next?? Maybe some tools just like btsco?

[\u@\h \W]\$ hciconfig hci0 version revision
hci0:   Type: UART
        BD Address: 4A:49:4E:00:15:2D ACL MTU: 384:4 SCO MTU: 64:8
        HCI Ver: 1.1 (0x1) HCI Rev: 0x2c1 LMP Ver: 1.1 (0x1) LMP Subver: 0x2c1
        Manufacturer: Cambridge Silicon Radio (10)
        Build 705
        Chip version: BlueCore02-External
        Max key size: 56 bit
        SCO mapping: PCM