This is a note to let you know that I've just added the patch titled
ALSA: usb-audio: add dB range mapping for some devices
to the 3.10-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-db-range-mapping-for-some-devices.patch
and it can be found in the queue-3.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 2d1cb7f658fb9c3ba8f9dab8aca297d4dfdec835 Mon Sep 17 00:00:00 2001
From: Yao-Wen Mao <[email protected]>
Date: Wed, 29 Jul 2015 15:13:54 +0800
Subject: ALSA: usb-audio: add dB range mapping for some devices
From: Yao-Wen Mao <[email protected]>
commit 2d1cb7f658fb9c3ba8f9dab8aca297d4dfdec835 upstream.
Add the correct dB ranges of Bose Companion 5 and Drangonfly DAC 1.2.
Signed-off-by: Yao-Wen Mao <[email protected]>
Signed-off-by: Takashi Iwai <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
sound/usb/mixer_maps.c | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
--- a/sound/usb/mixer_maps.c
+++ b/sound/usb/mixer_maps.c
@@ -330,6 +330,20 @@ static const struct usbmix_name_map scms
{ 0 }
};
+/* Bose companion 5, the dB conversion factor is 16 instead of 256 */
+static struct usbmix_dB_map bose_companion5_dB = {-5006, -6};
+static struct usbmix_name_map bose_companion5_map[] = {
+ { 3, NULL, .dB = &bose_companion5_dB },
+ { 0 } /* terminator */
+};
+
+/* Dragonfly DAC 1.2, the dB conversion factor is 1 instead of 256 */
+static struct usbmix_dB_map dragonfly_1_2_dB = {0, 5000};
+static struct usbmix_name_map dragonfly_1_2_map[] = {
+ { 7, NULL, .dB = &dragonfly_1_2_dB },
+ { 0 } /* terminator */
+};
+
/*
* Control map entries
*/
@@ -432,6 +446,16 @@ static struct usbmix_ctl_map usbmix_ctl_
.id = USB_ID(0x25c4, 0x0003),
.map = scms_usb3318_map,
},
+ {
+ /* Bose Companion 5 */
+ .id = USB_ID(0x05a7, 0x1020),
+ .map = bose_companion5_map,
+ },
+ {
+ /* Dragonfly DAC 1.2 */
+ .id = USB_ID(0x21b4, 0x0081),
+ .map = dragonfly_1_2_map,
+ },
{ 0 } /* terminator */
};
Patches currently in stable-queue which might be from [email protected] are
queue-3.10/alsa-usb-audio-add-db-range-mapping-for-some-devices.patch
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