> Has anyone been able to get bluetooth working on the Odroid Xu4? I've > got it working with Fedora 29 on an Intel based PC using two different > USB dongles but not on the XU4. So, I am curious if anyone has tried on > the XU4 and if successful, what dongles and packages are you using? Is that via a USB bluetooth dongle or an onboard bluetooth/Wifi combo chip on the device. > BTW, on the XU4, I am able to pair and connect to my Yamaha Musiccast > speaker. The problem occurs when I try to test the speakers using the > bluetooth Mate sound menu. Once I click on either the right or left > test button for the speaker, no sound is audible and the bluetooth > connection immediately gets dropped. Again, all of this works on the > Intel PC and I have verified I have the same bluetooth packages > installed on both systems. So bluetooth is a bit of a complex beast. There's lots of standards and sub standards. The bluetooth audio standard on top of the other bits is quite specific and complex. The onboard bluetooth chips have an actual digital PCM/I²S audio input which has a board routing over to the audio codec/card on the device and needs routing/support with in the drivers and generally even the device tree to actually work. Some of the cheap Arm devices don't even route the audio, an example of a device that does, but doesn't currently have driver/device tree support is the PandaBoard, but you can see on page 37 of the schematic [1] how the audio connects through from the BT to audio codec. The intel PC you mention probably has an Intel mPCIe/m.2 interface and those interfaces have PCM/I²C [2] audio on the connector to route the audio to the bluetooth interface, see Key ID [2] for PCM links there. Often in the case of USB dongles they don't support the bluetooth audio sub standard, I don't think I've ever had one that supports it but I believe the more expensive ones do. Peter [1] https://www.cs.utexas.edu/~simon/378/resources/PandaBoardES.pdf [2] https://en.wikipedia.org/wiki/M.2#Form_factors_and_keying _______________________________________________ arm mailing list -- arm@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to arm-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://getfedora.org/code-of-conduct.html List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/arm@xxxxxxxxxxxxxxxxxxxxxxx
