Hi Szymon, Sorry for posting with ML, my mistake. Thanks for the information. Again, I was trying to find where the unknown AT Commands are coming; I tried to catch @ static void at_cmd_unknown(const char *command, void *user_data); But, no luck, no AT commands are caught there. If you can let me know, where all the AT commands will be handled would be of great help ( unknown - so that I can handle then) ManYThanks Prabhu On Mon, Jun 15, 2015 at 7:45 PM, Szymon Janc <szymon.janc@xxxxxxxxx> wrote: > Hi Prabhu, > > On Monday 15 of June 2015 19:11:32 Prabhu Chawandi wrote: >> Hi Szymon, >> >> Thanks for your reply. I was debugging further, I noticed that >> while connecting at service level, there is CIND callback >> (cind_cmd_cb) is coming which is for Call Indicator AT CMD. >> I am curious to know, how it is happening, which can help me to >> understand and try for other call backs. > > Please don't top-post on ML. > > As for your question: HFP HAL has methods that should be called as a reply for > some callbacks ie for cind that would be cind_response. You can check > "android/hardware/bt_hf.h". > > Yet, Android HAL is rather lowlevel interface not recommended for direct use. > If for whatever reason you are stuck with it I suggest checking Android > Framework source code as this (and header comments) is the only documentation > you get for it. > >> On Mon, Jun 15, 2015 at 5:42 PM, Szymon Janc <szymon.janc@xxxxxxxxx> wrote: >> > Hi Prabhu, >> > >> > On Monday 15 of June 2015 17:06:41 Prabhu Chawandi wrote: >> >> This is with respect to HFP profile. >> >> >> >> While I pressed the Button on my HF device, service level connection >> >> is happening - BTHF_STATE_CONNECTED is coming. >> >> >> >> But next callbacks are not coming on pressing of buttons - like voice >> >> recognition. >> >> >> >> Can any body help me >> > >> > HFP is a bit special since BfA provides only part of the implementation >> > and >> > rest is implemented in Android Framework. When HF device is connected SLC >> > creation must happen. Most likely your HF device is sending some AT >> > commands and you must response to those as per HFP specification. Only >> > when all required SLC AT commands are handled state will be set to >> > BTHF_STATE_SCL_CONNECTED. This is normally handled by Android Framework >> > but if you are using haltest you must handle those on your own. >> > >> > For details on how to setup SLC I recommend HFP specification lecture. >> > >> > -- >> > BR >> > Szymon Janc > > -- > BR > Szymon Janc -- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html