Hello, Sebastian code works great! But how can I proceed so the remaining battery is exposed over upower? Greping through pulseaudio sources (git://anongit.freedesktop.org/pulseaudio/pulseaudio) for 'battery' doesn't return anything, so anything about battery power seems unlikely to be merged into pulseaudio. upower already expose batteries from bluez through dbus (git://anongit.freedesktop.org/upower:src/linux/up-device-bluez.c) So is it possible to do the AT commands at the bluez level and expose the infos through dbus, so upower expose it to the rest of the system? Thanks, Hugues On 02/24/2017 12:01 PM, Hugues wrote: > Hello, > Thanks a lot! > I tried to connect to the headset through dbus to make the AT commands, > but failed. > So what's the services/program where this should be implemented so it > can be exposed on dbus and picked up by the Desktop Environment? > > Regards, > Hugues > > On 02/13/2017 06:55 AM, Sebastian Reichel wrote: >> Hi, >> >> FWIW I was also interested in battery level of my Bose QC35 and >> checked this some time ago. That time I only checked the low >> energy stuff, since the Android application seems to know the >> battery status with only LE being connected. >> >> Marcel Holtman wrote: >>>> 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). >> >> Bose QC35 does not expose battery status through standard battery_level >> characteristic. There is a proprietary primary service 0xfebe (which >> is assigned to Bose) with a couple of custom services. I assume battery >> level can be read through them, but the required commands are unknown. >> >>>> 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 >> >> Thanks for the documentation link! That is actually implemented for >> the Bose QC35. Here is a quick hack providing battery status info >> in pulseaudio log: >> >> https://github.com/sre/pulseaudio/commit/d66b66d20e9bc73e6d0ca89283cf2b5675304b00 >> >> -- Sebastian >> > -- 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
