From: Jaroslav Kysela <perex@perex.cz>
Date: Thu, 24 Apr 2025 11:21:10 +0000 (+0200)
Subject: USB-Audio: Steinberg UR22C - fix capture channels for older firmware
X-Git-Tag: v1.2.15~2
X-Git-Url: https://git.alsa-project.org/?a=commitdiff_plain;h=2ecc938e1fc2ecacfe5d871d5d9ae8e22df77b1a;p=alsa-ucm-conf.git

USB-Audio: Steinberg UR22C - fix capture channels for older firmware

It seems that firmware version 3.20 added 4 capture channels while
previous firmware has only 2 capture channels.

Closes: https://github.com/alsa-project/alsa-ucm-conf/pull/554
Fixes: https://github.com/alsa-project/alsa-ucm-conf/issues/547
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
---

diff --git a/ucm2/USB-Audio/Steinberg/UR22C-HiFi.conf b/ucm2/USB-Audio/Steinberg/UR22C-HiFi.conf
index 79ba681..35d4c45 100644
--- a/ucm2/USB-Audio/Steinberg/UR22C-HiFi.conf
+++ b/ucm2/USB-Audio/Steinberg/UR22C-HiFi.conf
@@ -6,7 +6,7 @@ Macro [
 			Name "steinberg_ur22c_mono_in"
 			Direction Capture
 			Channels 1
-			HWChannels 4
+			HWChannels "${var:DirectCaptureChannels}"
 			HWChannelPos0 MONO
 			HWChannelPos1 MONO
 		}
@@ -31,7 +31,7 @@ SectionDevice."Line 2" {
 	Macro.pcm_split.SplitPCMDevice {
 		Name "steinberg_ur22c_mono_in"
 		Direction Capture
-		HWChannels 4
+		HWChannels "${var:DirectCaptureChannels}"
 		Channels 1
 		Channel0 0
 		ChannelPos0 MONO
@@ -47,7 +47,7 @@ SectionDevice."Line 3" {
 	Macro.pcm_split.SplitPCMDevice {
 		Name "steinberg_ur22c_mono_in"
 		Direction Capture
-		HWChannels 4
+		HWChannels "${var:DirectCaptureChannels}"
 		Channels 1
 		Channel0 1
 		ChannelPos0 MONO
diff --git a/ucm2/USB-Audio/Steinberg/UR22C.conf b/ucm2/USB-Audio/Steinberg/UR22C.conf
index f38b744..08e4100 100644
--- a/ucm2/USB-Audio/Steinberg/UR22C.conf
+++ b/ucm2/USB-Audio/Steinberg/UR22C.conf
@@ -1,11 +1,20 @@
 Comment "Steinberg UR22C USB-Audio"
 
+Define.DirectPlaybackChannels 2
+Define.DirectCaptureChannels 4
+
+If.fw {
+	Condition {
+		Type RegexMatch
+		String "${sys-card:device/../bcdDevice}"
+		Match "0[12]??"
+	}
+	True.Define.DirectCaptureChannels 2
+}
+
 SectionUseCase."HiFi" {
 	Comment "HiFi"
 	File "/USB-Audio/Steinberg/UR22C-HiFi.conf"
 }
 
-Define.DirectPlaybackChannels 2
-Define.DirectCaptureChannels 2
-
 Include.dhw.File "/common/direct.conf"