Hello GuoYun, Many BT chips route A2DP voice stream via PCM/I2S lines instead of HCI.
Best Regards, Arun K. Singh www.crazydaks.com On Sun, Jan 16, 2011 at 2:49 PM, Guo Yun <[email protected]> wrote: > > On Sun, Jan 16, 2011 at 11:58 AM, Arun K. Singh <[email protected]> wrote: >> >> Depends which voice stream you have in mind ...voip uses udp packets >> which is pretty much on kernel ip stack while many bt chips stream >> a2dp voice via i2s... > > As far as I know, A2DP voice data is over UART or SDIO which depends on bt > chipset connection, NOT I2S. Could you please point me out which chip > transfer A2DP voice over I2S? Some code path also be appreciated. > > -- > GuoYun > >> >> Which use case do you have in mind? >> >> On 1/16/11, Earlence <[email protected]> wrote: >> > 1. Is there any interface inside the kernel with the radio processor? >> > 2. Can the voice stream (to the network, from the network) be accessed >> > from within the kernel? >> > >> > Cheers, >> > Earlence >> > >> > -- >> > unsubscribe: [email protected] >> > website: http://groups.google.com/group/android-kernel >> >> >> -- >> Best Regards, >> Arun K. Singh >> www.crazydaks.com >> >> -- >> unsubscribe: [email protected] >> website: http://groups.google.com/group/android-kernel > > -- > unsubscribe: [email protected] > website: http://groups.google.com/group/android-kernel -- unsubscribe: [email protected] website: http://groups.google.com/group/android-kernel
