On Wed, 13 Jan 2021 15:36:19 +0100, Bastien Nocera wrote: > > Hey, > > On Wed, 2020-12-09 at 14:30 +0100, Bastien Nocera wrote: > > Hey, > > > > I've recently bought a SteelSeries Arctis 1 wireless headset: > > https://steelseries.com/gaming-headsets/arctis-1-wireless-xbox > > and wanted to write a kernel driver to export a few features of the > > device, and needed some help getting started. > > > > The receiver shows up as a audio class USB device, with extra > > features > > on a separate USB interface.[1] > > > > The extra features that can be accessed are: > > - Presence detection. I wanted to use that so PulseAudio or Pipewire > > could make routing decisions based on whether the headset is > > available, > > or probably better, implementing a "jack detection" emulation for the > > main audio interface? > > - A slider to change the sidetone volume > > - Export the battery level > > > > The latter is the only one I know how to do, so I'd be happy with any > > pointers or examples about the first two items. > > > I sent this in December and didn't get any answers, and I would > appreciate any guidance/examples if you have any into implementing > this. Judging from the link, is it controlled through HID? If so, it's primarily done by a HID driver, and it doesn't belong to the sound card stuff, so far. Though.... > I would imagine that the new features would be implemented through a > separate ALSA device with few features, which PulseAudio/Pipewire could > merge with the existing USB audio device. ... given that it's implemented in a HID driver, the integration to the system is a different question. But unless it's implemented as a sound card device, the rest will become a totally different, e.g. another PA or PW module. thanks, Takashi > > Cheers > > > [1]: User-space code that accesses those features: > > > > https://github.com/Sapd/HeadsetControl/blob/master/src/devices/steelseries_arctis_1_xbox.c > >
