diff --git a/sys/dev/pcm/isa/mss.c b/sys/dev/pcm/isa/mss.c
index 16599d6ae13..cfb8a3dbfed 100644
--- a/sys/dev/pcm/isa/mss.c
+++ b/sys/dev/pcm/isa/mss.c
@@ -1402,6 +1402,8 @@ cs423x_probe(u_long csn, u_long vend_id)
     u_long id = vend_id & 0xff00ffff;
     if ( id == 0x3700630e )
 	s = "CS4237" ;
+    if ( id == 0x2500630e )
+	s = "CS4235" ;
     else if ( id == 0x3500630e || id == 0x3600630e )
 	s = "CS4236" ;
     else if ( id == 0x3500630e )
@@ -1485,6 +1487,10 @@ cs423x_attach(u_long csn, u_long vend_id, char *name,
 	    tmp_d.bd_id = MD_CS4237 ;
 	    break;
 
+	case 0x2500630e:	/* AOpen AW37 */
+	    tmp_d.bd_id = MD_CS4237 ;
+	    break ;
+
 	case 0x3500630e:        /* CS4236B */
 	case 0x3600630e:        /* CS4236 */
 	    tmp_d.bd_id = MD_CS4236 ;
diff --git a/sys/dev/sound/isa/mss.c b/sys/dev/sound/isa/mss.c
index 16599d6ae13..cfb8a3dbfed 100644
--- a/sys/dev/sound/isa/mss.c
+++ b/sys/dev/sound/isa/mss.c
@@ -1402,6 +1402,8 @@ cs423x_probe(u_long csn, u_long vend_id)
     u_long id = vend_id & 0xff00ffff;
     if ( id == 0x3700630e )
 	s = "CS4237" ;
+    if ( id == 0x2500630e )
+	s = "CS4235" ;
     else if ( id == 0x3500630e || id == 0x3600630e )
 	s = "CS4236" ;
     else if ( id == 0x3500630e )
@@ -1485,6 +1487,10 @@ cs423x_attach(u_long csn, u_long vend_id, char *name,
 	    tmp_d.bd_id = MD_CS4237 ;
 	    break;
 
+	case 0x2500630e:	/* AOpen AW37 */
+	    tmp_d.bd_id = MD_CS4237 ;
+	    break ;
+
 	case 0x3500630e:        /* CS4236B */
 	case 0x3600630e:        /* CS4236 */
 	    tmp_d.bd_id = MD_CS4236 ;
diff --git a/sys/i386/isa/snd/ad1848.c b/sys/i386/isa/snd/ad1848.c
index 16599d6ae13..cfb8a3dbfed 100644
--- a/sys/i386/isa/snd/ad1848.c
+++ b/sys/i386/isa/snd/ad1848.c
@@ -1402,6 +1402,8 @@ cs423x_probe(u_long csn, u_long vend_id)
     u_long id = vend_id & 0xff00ffff;
     if ( id == 0x3700630e )
 	s = "CS4237" ;
+    if ( id == 0x2500630e )
+	s = "CS4235" ;
     else if ( id == 0x3500630e || id == 0x3600630e )
 	s = "CS4236" ;
     else if ( id == 0x3500630e )
@@ -1485,6 +1487,10 @@ cs423x_attach(u_long csn, u_long vend_id, char *name,
 	    tmp_d.bd_id = MD_CS4237 ;
 	    break;
 
+	case 0x2500630e:	/* AOpen AW37 */
+	    tmp_d.bd_id = MD_CS4237 ;
+	    break ;
+
 	case 0x3500630e:        /* CS4236B */
 	case 0x3600630e:        /* CS4236 */
 	    tmp_d.bd_id = MD_CS4236 ;