linux-kernel - [PATCH] ALSA: usb-audio: Add Line Out to iterm

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Message-ID: <20251229093130.3202058-1-zhangheng@kylinos.cn>
Date: Mon, 29 Dec 2025 17:31:29 +0800
From: Zhang Heng <zhangheng@...inos.cn>
To: perex@...ex.cz,
	tiwai@...e.com,
	cryolitia.pukngae@...ux.dev,
	kuninori.morimoto.gx@...esas.com,
	lhi0729@...st.ac.kr,
	pav@....fi,
	rene@...ctco.de
Cc: linux-sound@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Zhang Heng <zhangheng@...inos.cn>
Subject: [PATCH] ALSA: usb-audio: Add Line Out to iterm_names

There are three jack events for a sound card on a desktop computer,
namely Speaker, Headphone, and Desktop Speaker. When both audio
devices are available, users cannot distinguish which audio device
is being used. Can we consider adding Line Out? similar to the HDA
sound card. This can change one of them and reduce the complexity
of the upper layer adaptation of the sound card.

Signed-off-by: Zhang Heng <zhangheng@...inos.cn>
---
 sound/usb/mixer.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index 3af71d42b9b9..bdde4261d994 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -615,6 +615,7 @@ static struct iterm_name_combo {
 	{ 0x0305, "Room Speaker" },
 	{ 0x0306, "Com Speaker" },
 	{ 0x0307, "LFE" },
+	{ 0x0308, "Line Out" },
 	{ 0x0600, "External In" },
 	{ 0x0601, "Analog In" },
 	{ 0x0602, "Digital In" },
-- 
2.47.1