[PATCH] ALSA: usbaudio Mbox support, output only

From: Chris J Arges <christopherarges@gmail.com>
To: alsa-devel@alsa-project.org
Cc: tiwai@suse.de, clemens <clemens@ladisch.de>
Subject: [PATCH] ALSA: usbaudio Mbox support, output only
Date: Wed, 17 Feb 2010 12:26:15 -0600	[thread overview]
Message-ID: <1266431175.3167.118.camel@macgyver> (raw)

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This minimal patch has been tested on my laptop and currently output
only works. This patch is based off of code that Clemens Ladisch posted
on the alsa-devel mailing list way back in 2004.

--chris j arges

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>From d079f1d7298d06597fa7d4c3c4aa8979864342ac Mon Sep 17 00:00:00 2001
From: Chris J Arges <christopherarges@gmail.com>
Date: Wed, 17 Feb 2010 12:12:52 -0600
Subject: [PATCH] ALSA: usbaudio Mbox support, output only

Signed-off-by: Chris J Arges <christopherarges@gmail.com>

---
 sound/usb/usbquirks.h |   45 +++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 45 insertions(+), 0 deletions(-)

diff --git a/sound/usb/usbquirks.h b/sound/usb/usbquirks.h
index e691eba..14552d2 100644
--- a/sound/usb/usbquirks.h
+++ b/sound/usb/usbquirks.h
@@ -2215,6 +2215,51 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 	}
 },
 
+/* Digidesign Mbox */
+{
+	/* Thanks to Clemens Ladisch <clemens@ladisch.de> */
+	USB_DEVICE(0x0dba, 0x1000),
+	.driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) {
+		.vendor_name = "Digidesign",
+		.product_name = "MBox",
+		.ifnum = QUIRK_ANY_INTERFACE,
+		.type = QUIRK_COMPOSITE,
+		.data = (const struct snd_usb_audio_quirk[]){
+			{
+				.ifnum = 0,
+				.type = QUIRK_IGNORE_INTERFACE,
+			},
+			{
+				.ifnum = 1,
+				.type = QUIRK_AUDIO_FIXED_ENDPOINT,
+				.data = &(const struct audioformat) {
+					.format = SNDRV_PCM_FORMAT_S24_3BE,
+					.channels = 2,
+					.iface = 1,
+					.altsetting = 1,
+					.altset_idx = 1,
+					.attributes = EP_CS_ATTR_SAMPLE_RATE,
+					.endpoint = 0x02,
+					.ep_attr = 0x01,
+					.maxpacksize = 0x130,
+					.rates = SNDRV_PCM_RATE_44100 |
+						 SNDRV_PCM_RATE_48000,
+					.rate_min = 44100,
+					.rate_max = 48000,
+					.nr_rates = 2,
+					.rate_table = (unsigned int[]) {
+						44100, 48000
+					}
+				}
+			},
+			{
+				.ifnum = -1
+			}
+		}
+
+	}
+},
+
 {
 	/*
 	 * Some USB MIDI devices don't have an audio control interface,
-- 
1.6.3.3


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