Hi, Intel adapter 9260 and 9265(with the latest Firmware - from Bluetooth-next) supports USB ALT 6 settings and was verified. Along with backend ofono https://patchwork.freedesktop.org/patch/245272/ https://www.spinics.net/lists/linux-bluetooth/msg76982.html Regards, Sathish N On Wed, Mar 6, 2019 at 5:15 AM Yaroslav Isakov <yaroslav.isakov@xxxxxxxxx> wrote: > > Hello! I'm currently trying to modify pulseaudio to be able to use HFP > profile with mSBC codec on native backend, but found that, while > working de-jure, real sound is completely ruined, so I can barely hear > what is sent over SCO link. I've tried two different Intel adapters > (included in 8260 and 8265 chipset) and KillerWifi (ath10k driver), on > two different PCs with two different headsets, results are mostly the > same, the only difference is that on ath10k words are more or less > distinguishable. > > I've even tested with pulse just for profile setup, and SCO is sent > via modified scotest from bluez, which sends some test sound, manually > encoded via sbcenc (with added h2, of course). I've tried also msbc > branch from bluez-alsa, same result. > > I'm sure that every time socket is connected with setsockopt(fd, > SOL_BLUETOOTH, BT_VOICE, &voice, sizeof(voice)); > > I've also tried with this patch > https://www.spinics.net/lists/linux-bluetooth/msg76982.html, with no > luck. > > Any ideas?