snd-bt-sco on an UART bluetooth device

Hi all,

I'm trying to use the snd-bt-sco driver and btsco application (both for using a bluetooth headset). When I used a usb bluetooth dongle, everything was ok. But, when I use the bluetooh on-board (UART type), the sound on bluetooth headset is very bad and I can't hear anything, just noise.
I tryed to change the ACL MTU and SCO MTU to be the same on the UART bluetooth and usb bluetooth, but I got the same problem with the sound on bt headset.
I'm using a btsco version 0.4. And this is the output from a hciconfig command typed on the device:

hci0: Type: UART

       BD Address: 00:12:37:20:BF:F0 ACL MTU: 339:6 SCO MTU: 180:4
       UP RUNNING
       RX bytes:562 acl:0 sco:0 events:15 errors:0
       TX bytes:10150 acl:0 sco:0 commands:14 errors:0

Somebody can help me?

Thanks in advance,

Anderson

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Anderson

I remember seeing someone else talk about this problem. It should work as long as the bluetooth adapter is still made by CSR. If it is a CSR chip then maybe there's a problem in the kernel driver.

Brad

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At what speed are you running this UART?