FM / USB-Audio

/usr/share/alsa/ucm2/USB-Audio

Name	Size	Mode	Actions
Dell-WD15-Dock-HiFi.conf	1057	0644	edit dl rm
Dell-WD15-Dock.conf	136	0644	edit dl rm
Lenovo-ThinkStation-P620-Main-Headset.conf	335	0644	edit dl rm
Lenovo-ThinkStation-P620-Main-Speaker.conf	150	0644	edit dl rm
Lenovo-ThinkStation-P620-Main.conf	282	0644	edit dl rm
Lenovo-ThinkStation-P620-Rear-Line.conf	167	0644	edit dl rm
Lenovo-ThinkStation-P620-Rear-Mic.conf	169	0644	edit dl rm
Lenovo-ThinkStation-P620-Rear-Speaker.conf	127	0644	edit dl rm
Lenovo-ThinkStation-P620-Rear.conf	356	0644	edit dl rm

Edit: /usr/share/alsa/ucm2/USB-Audio/Dell-WD15-Dock-HiFi.conf (1057B)

SectionDevice."Headphones" {
	Comment "Headphones"

Value {
		PlaybackPriority 100
		PlaybackPCM "hw:${CardId}"

If.Headphone_ctl {
			Condition {
				Type ControlExists
				Control "name='Headphone Playback Switch'"
			}
			True {
				PlaybackMixerElem "Headphone"
				PlaybackVolume "Headphone Playback Volume"
				PlaybackSwitch "Headphone Playback Switch"
			}
		}
	}
}

SectionDevice."Line" {
	Comment "Line Out"

Value {
		PlaybackPriority 200
		PlaybackPCM "hw:${CardId},1"

If.Line_ctl {
			Condition {
				Type ControlExists
				Control "name='Line Playback Switch'"
			}
			True {
				PlaybackMixerElem "Line"
				PlaybackVolume "Line Playback Volume"
				PlaybackSwitch "Line Playback Switch"
			}
		}
	}
}

SectionDevice."Mic" {
	Comment "Microphone"

Value {
		CapturePriority 100
		CapturePCM "hw:${CardId}"

If.Mic_ctl {
			Condition {
				Type ControlExists
				Control "name='Mic Capture Switch'"
			}
			True {
				CaptureMixerElem "Mic"
				CaptureVolume "Mic Capture Volume"
				CaptureSwitch "Mic Capture Switch"
			}
		}
	}
}

cmd: