ALSA: usb-audio: Add mixer workaround for TRX40 and co (2a48218f) · Commits · 戴 / test

Some recent boards (supposedly with a new AMD platform) contain the USB audio class 2 device that is often tied with HD-audio. The device exposes an Input Gain Pad control (id=19, control=12) but this node doesn't behave correctly, returning an error for each inquiry of GET_MIN and GET_MAX that should have been mandatory. As a workaround, simply ignore this node by adding a usbmix_name_map table entry. The currently known devices are: * 0414:a002 - Gigabyte TRX40 Aorus Pro WiFi * 0b05:1916 - ASUS ROG Zenith II * 0b05:1917 - ASUS ROG Strix * 0db0:0d64 - MSI TRX40 Creator * 0db0:543d - MSI TRX40 BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=206543 Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20200408140449.22319-1-tiwai@suse.de Signed-off-by:

Takashi Iwai <tiwai@suse.de>

sound/usb/mixer_maps.c

+28 −0

Original line number	Diff line number	Diff line
		@@ -359,6 +359,14 @@ static const struct usbmix_name_map corsair_virtuoso_map[] = {
		{ 0 }
		};

		/* Some mobos shipped with a dummy HD-audio show the invalid GET_MIN/GET_MAX
		* response for Input Gain Pad (id=19, control=12). Skip it.
		*/
		static const struct usbmix_name_map asus_rog_map[] = {
		{ 19, NULL, 12 }, /* FU, Input Gain Pad */
		{}
		};

		/*
		* Control map entries
		*/
		@@ -488,6 +496,26 @@ static const struct usbmix_ctl_map usbmix_ctl_maps[] = {
		.id = USB_ID(0x1b1c, 0x0a42),
		.map = corsair_virtuoso_map,
		},
		{ /* Gigabyte TRX40 Aorus Pro WiFi */
		.id = USB_ID(0x0414, 0xa002),
		.map = asus_rog_map,
		},
		{ /* ASUS ROG Zenith II */
		.id = USB_ID(0x0b05, 0x1916),
		.map = asus_rog_map,
		},
		{ /* ASUS ROG Strix */
		.id = USB_ID(0x0b05, 0x1917),
		.map = asus_rog_map,
		},
		{ /* MSI TRX40 Creator */
		.id = USB_ID(0x0db0, 0x0d64),
		.map = asus_rog_map,
		},
		{ /* MSI TRX40 */
		.id = USB_ID(0x0db0, 0x543d),
		.map = asus_rog_map,
		},
		{ 0 } /* terminator */
		};

Admin message