The codepath `pa_alsa_ucm_add_ports` -> `probe_volumes` ->
`pa_alsa_path_probe` was never called leading to no HW volume being set
up when loading a card through UCM. PulseAudio calls this from
`card_set_profile` -> `pa_alsa_{sink,source}_new`.
data->path (current path for selected profile) is not set yet here
resulting in segfaults. We are not interested in printing that anyway
but instead care about the iterated `path` from data->paths.
This is needed for example for Clang compiler which uses different
annotations than GCC. It will make WebRTC to happily use PipeWire
since the spa library is header-only and WebRTC defaults to use
Clang with -Wimplicit-fallthrough.
When a port is plugged/unplugged, first update all the profile states
and then emit a profile change only for the current profile. This way
the device can look at all the updated profiles to select the best one.
When we have accurate enough hardware volume, set the software volume to
1.0. Also fixes the issue of going to 0 volume and then staying silent
until we raise the volume above 1.0.
It is not clear if the port index is in the card or device port array
and it doesn't work when many ports are active. So simply iterate the
device ports and find the ones with the active flag set.
This tool detects and fixes common English spelling mistakes, with
generally very few mistakes.
Here is the command I used to generate this commit. There were a few
changes that had to be done manually, and of course adding the ignore
file:
```shell
codespell -I .codespell-ignore -x .codespell-ignore -w
```
I didn’t add it to the CI, but this would be a good place for it.
Add the list of possible ports for a device.
Pass the allowed devices in the routes.
Store the active port in the device.
Fixes enumeration of ports on devices with UCM.
Add a READONLY property flag to makr properties READONLY
Set the base_volume and volume_step in the acp device
Send the base volume and step as REAONLY properties. Use these
in pulse layer.
