Hi Margarita, > I've created some code that can read this data out of UCM in module > alsa-card but I'm now looking for the best way to store this into the > prop list for the sound card. e.g. should I extend intended roles > proplist or add new proplist types for UCM. As I wrote in my comments on alsa-devel, I don't think it's right to read UCM properties in module-alsa-card. For virtual cards, eg. a USB headphone and a USB microphone, you will have 2 cards part used for the same verb. It'd be weird to store UCM values twice. In addition, somehow we have to reconcile the static list of cards/devices in UCM configurations with the way PulseAudio detects hardware. I would think UCM information should be stored in a core proplist by a standalone module that runs on startup (before module-udev-detect), and when a card is detected with udev events you can identify in module-alsa-card which configuration to use. Only then can you set the UCM verb/devices for that specific card based on the role indicated by clients. -Pierre
