linux-kernel - [PATCH] ALSA: usb-audio: add mapping for MSI MPG X570S Carbon Max Wifi.

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Date:   Sat, 15 Jan 2022 15:02:57 +0100
From:   Johannes Schickel <lordhoto@...il.com>
To:     alsa-devel@...a-project.org
Cc:     Johannes Schickel <lordhoto@...il.com>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Andrea Fagiani <andfagiani@...il.com>,
        Timo Gurr <timo.gurr@...il.com>, linux-kernel@...r.kernel.org
Subject: [PATCH] ALSA: usb-audio: add mapping for MSI MPG X570S Carbon Max Wifi.

The USB audio device 0db0:419c based on the Realtek ALC4080 chip exposes
all playback volume controls as "PCM". This is makes distinguishing the
individual functions hard.

The added mapping distinguishes all playback volume controls as their
respective function:
 - Speaker              - for back panel output
 - Frontpanel Headphone - for front panel output
 - IEC958               - for digital output on the back panel

This clarifies the individual volume control functions for users.

Signed-off-by: Johannes Schickel <lordhoto@...il.com>
---
 sound/usb/mixer_maps.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/sound/usb/mixer_maps.c b/sound/usb/mixer_maps.c
index 5d391f62351b..96991ddf5055 100644
--- a/sound/usb/mixer_maps.c
+++ b/sound/usb/mixer_maps.c
@@ -431,6 +431,14 @@ static const struct usbmix_name_map aorus_master_alc1220vb_map[] = {
 	{}
 };
 
+/* MSI MPG X570S Carbon Max Wifi with ALC4080  */
+static const struct usbmix_name_map msi_mpg_x570s_carbon_max_wifi_alc4080_map[] = {
+	{ 29, "Speaker Playback" },
+	{ 30, "Front Headphone Playback" },
+	{ 32, "IEC958 Playback" },
+	{}
+};
+
 /*
  * Control map entries
  */
@@ -577,6 +585,10 @@ static const struct usbmix_ctl_map usbmix_ctl_maps[] = {
 		.map = trx40_mobo_map,
 		.connector_map = trx40_mobo_connector_map,
 	},
+	{	/* MSI MPG X570S Carbon Max Wifi */
+		.id = USB_ID(0x0db0, 0x419c),
+		.map = msi_mpg_x570s_carbon_max_wifi_alc4080_map,
+	},
 	{	/* MSI TRX40 */
 		.id = USB_ID(0x0db0, 0x543d),
 		.map = trx40_mobo_map,
-- 
2.34.1