On Mon, 2016-08-15 at 23:28 +1000, Bernd Wechner wrote: > I notice it's possible to alter sink properties with > update-sink-properties but see no analog for card properties. > > Specifically I find that pulse audio sets the device.description for > cards, to "Built-in Audio" if it's on the motherboard, but for USB sound > devices takes the USB property idProduct. > > Either way I use lots of sound devices and they are apparently listed by > card device.description in the Sound settings app (Linux Mint Cinnamon) > and I'd like to be able to adjust the device.description for cards. > > Is there a way to do this I'm not seeing? I don't think there's any way for cards that are loaded by module-udev- detect. If you disable module-udev-detect and load module-alsa-card instances manually, then you can use the card_properties argument. Patches for adding a set-card-description command for pactl (and to the native protocol) would be welcome. I don't like the idea of adding a more general "update-card-properties" command, however. The server uses proplists for things that clients shouldn't be able to freely mess with. If "update-card-properties" would be added, we would have to make sure that the server doesn't trust the proplist values too much. pacmd already has the update-sink-properties and other similar commands, which may seem strange given what I wrote above, and indeed I wish those commands didn't exist. It could be argued that not much extra damage would be made by adding an update-card-properties command to pacmd, and that might be true (I might even accept such patch), but given that pacmd is semi-deprecated in favour of pactl, I'm not really enthusiastic about adding new functionality to pacmd. -- Tanu
