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Patch "ALSA: usb-audio: Add MIDI support for Steinberg MI2/MI4" has been added to the 3.14-stable tree

PATCH [email protected] 1 participant 1 message Aug 7, 2015

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This is a note to let you know that I've just added the patch titled

ALSA: usb-audio: Add MIDI support for Steinberg MI2/MI4

to the 3.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
alsa-usb-audio-add-midi-support-for-steinberg-mi2-mi4.patch
and it can be found in the queue-3.14 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

Quoted 1 line

From 0689a86ae814f39af94a9736a0a5426dd82eb107 Mon Sep 17 00:00:00 2001

From: =?UTF-8?q?Dominic=20Sacr=C3=A9?= <[email protected]>
Date: Tue, 30 Jun 2015 17:41:33 +0200
Subject: ALSA: usb-audio: Add MIDI support for Steinberg MI2/MI4
MIME-Version: 1.0
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From: =?UTF-8?q?Dominic=20Sacr=C3=A9?= <[email protected]>

commit 0689a86ae814f39af94a9736a0a5426dd82eb107 upstream.

The Steinberg MI2 and MI4 interfaces are compatible with the USB class audio spec, but the MIDI part of the devices is reported as a vendor specific interface.

This patch adds entries to quirks-table.h to recognize the MIDI endpoints. Audio functionality was already working and is unaffected by this change.

Signed-off-by Dominic Sacré <[email protected]>
Signed-off-by Albert Huitsing <[email protected]>
Acked-by Clemens Ladisch <[email protected]>
Signed-off-by Takashi Iwai <[email protected]>
Signed-off-by Greg Kroah-Hartman <[email protected]>
---
 sound/usb/quirks-table.h |   68 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 68 insertions(+)
sound/usb/quirks-table.h +68 -0
@@ -2516,6 +2516,74 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 	}
 },
 
+/* Steinberg devices */
+{
+	/* Steinberg MI2 */
+	USB_DEVICE_VENDOR_SPEC(0x0a4e, 0x2040),
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
+		.ifnum = QUIRK_ANY_INTERFACE,
+		.type = QUIRK_COMPOSITE,
+		.data = & (const struct snd_usb_audio_quirk[]) {
+			{
+				.ifnum = 0,
+				.type = QUIRK_AUDIO_STANDARD_INTERFACE
+			},
+			{
+				.ifnum = 1,
+				.type = QUIRK_AUDIO_STANDARD_INTERFACE
+			},
+			{
+				.ifnum = 2,
+				.type = QUIRK_AUDIO_STANDARD_INTERFACE
+			},
+			{
+				.ifnum = 3,
+				.type = QUIRK_MIDI_FIXED_ENDPOINT,
+				.data = &(const struct snd_usb_midi_endpoint_info) {
+					.out_cables = 0x0001,
+					.in_cables  = 0x0001
+				}
+			},
+			{
+				.ifnum = -1
+			}
+		}
+	}
+},
+{
+	/* Steinberg MI4 */
+	USB_DEVICE_VENDOR_SPEC(0x0a4e, 0x4040),
+	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
+		.ifnum = QUIRK_ANY_INTERFACE,
+		.type = QUIRK_COMPOSITE,
+		.data = & (const struct snd_usb_audio_quirk[]) {
+			{
+				.ifnum = 0,
+				.type = QUIRK_AUDIO_STANDARD_INTERFACE
+			},
+			{
+				.ifnum = 1,
+				.type = QUIRK_AUDIO_STANDARD_INTERFACE
+			},
+			{
+				.ifnum = 2,
+				.type = QUIRK_AUDIO_STANDARD_INTERFACE
+			},
+			{
+				.ifnum = 3,
+				.type = QUIRK_MIDI_FIXED_ENDPOINT,
+				.data = &(const struct snd_usb_midi_endpoint_info) {
+					.out_cables = 0x0001,
+					.in_cables  = 0x0001
+				}
+			},
+			{
+				.ifnum = -1
+			}
+		}
+	}
+},
+
 /* TerraTec devices */
 {
 	USB_DEVICE_VENDOR_SPEC(0x0ccd, 0x0012),

Patches currently in stable-queue which might be from [email protected] are

queue-3.14/alsa-usb-audio-add-midi-support-for-steinberg-mi2-mi4.patch