Re: [PATCH] ALSA: usb-audio: Add Line Out to iterm_names

From: Takashi Iwai

Date: Wed Dec 31 2025 - 10:43:21 EST


On Mon, 29 Dec 2025 10:31:29 +0100,
Zhang Heng wrote:
>
> 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@xxxxxxxxxx>

Is 0x0308 something properly defined standard?
If so, we can add the entry, of course.


thanks,

Takashi


> ---
> 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
>