Pali Rohár wrote: > Yes, HFP 1.7 has support for reporting battery level via HF indicators, > so via AT+BIEV= command. > >> Looks like that not all devices support one and the same method to report >> battery level. (I can imagine that not many support H[S|F]P). > > But you are right that not all devices support HFP 1.7 and important is > that HF indicator for battery level is optional and even HFP 1.7 > compliant device does not have to support it. > > And also more HFP pre-1.7 devices reports battery level via own custom > vendor AT commands. E.g. via apple command AT+IPHONEACCEV=1,1, or via > csr command AT+CSRBATT= > > All 3 ways I implemented in my Perl prototype. >
I was not specific to HFP or HSP. In fact HFP is more into automotive and is not equal to HSP, but I bet you know this. I also did not read HFP specs to go into detail. I meant many devices that run on battery do not have HFP - but you are very specific to audio devices that run on battery >> Anyway - seems to be interesting topic >> https://stackoverflow.com/questions/49078659/check-battery-level-of-connected-bluetooth-device-on-linux >> https://www.bluetooth.com/specifications/gatt/ > > This is GATT profile, which is independent of HFP profile and therefore > is out of scope of HFP implementation. > >> I am more interested in more robust H[S|F]P implementation, though it >> looks like it depends widely on the manufacturer. > > Yes, manufactures uses own custom AT commands, but I know only above 3 > ways how devices report battery level via HFP. > > Prototype with documentation and API specification I put into > repository: https://github.com/pali/hsphfpd-prototype I am more interested in HFP working with my car :) which it stopped doing since Sailfish X became the phone of choice (was N9 before) ... but I guess it will be solved when I sell it next year :) With newer cars it worked well, but in the background the ofono and pulse parts are a bit odd. _______________________________________________ SailfishOS.org Devel mailing list To unsubscribe, please send a mail to devel-unsubscr...@lists.sailfishos.org
