ucm2: USB-Audio: add Creative Sound Blaster G8 support

GitHub pull_request - opened <[email protected]>
Newsgroups org.alsa-project.alsa-devel
Message-ID <[email protected]>
alsa-project/alsa-ucm-conf pull request #771 was opened from romain-pereira:

Add UCM2 configuration for the Creative Sound Blaster G8 (USB 041e:329b).

Devices (HiFi verb):
- Headphones: playback via Speaker DAC (hw:${CardId},0, -64 to 0 dB)
[alsa-info-g8.txt](https://github.com/user-attachments/files/28466856/alsa-info-g8.txt)

- External Mic, Line In, S/PDIF In, What U Hear: capture via hardware mux (PCM Capture Source), mutually exclusive via ConflictingDevice

BootSequence disables hardware monitoring paths (Line In/S/PDIF In Playback Switch are on by default in firmware) and sets External Mic as the default capture source.

Direct verb provided via common/directm.conf macro.

Request URL   : https://github.com/alsa-project/alsa-ucm-conf/pull/771
Patch URL     : https://github.com/alsa-project/alsa-ucm-conf/pull/771.patch
Repository URL: https://github.com/alsa-project/alsa-ucm-conf
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