Re: [Gumstix-users] bluetooth & voice audio

[Craig H. <cr...@gu...>]

They're end-of-lifing the ROK104001, so we're going to be moving to  
using the replacement PD-something module, which has a different  
footprint, so we're going to have to redo the BT pad section of the  
gumstix anyway -- when we do, we'll connect the module's PCM lines to  
one of the SSPs on the PXA.  Then PCM data should be readable using  
the SSP.

It would of course be neat if the module *could* do PCM-over-HCI.

C

On Aug 18, 2005, at 8:10 AM, Brad Midgley wrote:

> Guys,
>
> I exchanged email with the Ericsson tech contact for gumstix a  
> while back and determined there was no hci routing of audio so SCO  
> audio on gumstix would always terminate at the (unconnected/ 
> unreachable) pcm lines. An interesting post showed up at the bluez- 
> devel list yesterday:
>
> ========================================
> i'm using an ericsson "ROK 101008" bluetooth module and kernel  
> 2.6.10. the module can be connected via usb or rs232. and i found  
> an ericsson specific hci command to switch the sco-path to HCI (it  
> is set to PCM by default).
>
> using the usb connection (hci_usb) everything works fine and i can  
> send and receive audio to/from a headset. however, when connecting  
> the module via serial cable (hci_uart) sending and receiving audio  
> does not work. the sco connection to the headset is established but  
> there is no sco data transferred. i tried to attach the device with  
> different speeds but i did not notice any difference. i really need  
> the serial connection because usb is not available on the target  
> system. can somebody help me with this topic?
> ========================================
>
> I'd love to find out I was wrong on this. I replied to him but  
> haven't gotten anything back yet. Very interesting. I'll try to  
> find out more.
>
> Brad
>
>
> -------------------------------------------------------
> SF.Net email is Sponsored by the Better Software Conference & EXPO
> September 19-22, 2005 * San Francisco, CA * Development Lifecycle  
> Practices
> Agile & Plan-Driven Development * Managing Projects & Teams *  
> Testing & QA
> Security * Process Improvement & Measurement * http://www.sqe.com/ 
> bsce5sf
> _______________________________________________
> gumstix-users mailing list
> gum...@li...
> https://lists.sourceforge.net/lists/listinfo/gumstix-users
>