Hi Hugues, >>>> Thanks for the reply, I know the bose android application do report the >>>> battery power of the headset, but I don't know if it is done in a >>>> propitiatory manner. How could I check that ? >>> >>> It is probably the 00000000-deca-fade-deca-deafdecacaff service, Ive >>> also seem some bose devices that are dual-mode so they have a GATT >>> service over LE that might expose these details. >> >> or it uses the Apple HFP extensions they defined to get battery status. Also 00000000-deca-fade-deca-deafdecacaff should be the wireless version of Apple’ iAP (iPod Accessory Protocol). > > This headset do have dual mode, I searched around using gatttool ant the > gatt specification but I find nothing about Battery Level > (org.bluetooth.characteristic.battery_level.xml) or Battery Service > (org.bluetooth.service.battery_service.xml). How could I read what's in > the APple HFP extensions ? Start with this one. It describes the extra HFP AT commands that iOS uses: https://developer.apple.com/hardwaredrivers/BluetoothDesignGuidelines.pdf Regards Marcel -- 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
