Subject: Re: [Bluez-devel] AVDTP socket?
From: Marcel Holtmann <marcel@holtmann.org>
To: BlueZ Mailing List <bluez-devel@lists.sourceforge.net>
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Date: Sun, 14 Nov 2004 16:29:32 +0100

Hi Brad,

> Argh... I'm stuck again. the avdtp_set_configuration command goes out 
> but reading the response just blocks. I'm not sure what is wrong... I send:
> 
>   00 -> header = request
>   03 -> AVDTP_SET_CONFIGURATION
>   04 -> acp_seid = 1
>   04 -> int_seid = 1 (how should I choose the int_seid?)
>   01 -> service category = media transport
>   00 -> length of service capabilities = 0
>   07 -> capability type = media codec
>   06 -> bytes remaining? not sure if this is right.
>   00 -> media type = audio media type
>   00 -> media codec type = SBC
>   22 -> 44.1khz stereo
>   15 -> 16-byte blocks, 8 subbands, "loudness" allocation
>   02 -> min bitpool
>   fa -> max bitpool

I think you really need to fill in the transaction number in the header
byte. So it should be 0x00, 0x10, 0x20, 0x30 etc.

The bytes remaining value is right.

>>From sniffing the connection between the sender and receiver of my
Aiptek devices I see that they use 0x22 0x46 for the SBC setting. And
this is 44.1kHz, stereo, blocklen 64, 8 subbands, SNR if I decoded it
correct.

Regards

Marcel


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