diff --git a/[refs] b/[refs]
index 40732c82a3cb..897eac0f53ea 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 718a538f945a84244a460df434c3f6f04701957b
+refs/heads/master: 85e941cc9f10316080a16b121d24d329e5c2a65d
diff --git a/trunk/drivers/w1/w1_family.h b/trunk/drivers/w1/w1_family.h
index 2995c6cb869f..d01f0424cee9 100644
--- a/trunk/drivers/w1/w1_family.h
+++ b/trunk/drivers/w1/w1_family.h
@@ -27,7 +27,8 @@
 #include <asm/atomic.h>
 
 #define W1_FAMILY_DEFAULT	0
-#define W1_FAMILY_SMEM		0x01
+#define W1_FAMILY_SMEM_01	0x01
+#define W1_FAMILY_SMEM_81	0x81
 #define W1_THERM_DS18S20 	0x10
 #define W1_THERM_DS1822  	0x22
 #define W1_THERM_DS18B20 	0x28
diff --git a/trunk/drivers/w1/w1_smem.c b/trunk/drivers/w1/w1_smem.c
index 674eb75a9bad..4a335f1a2ae2 100644
--- a/trunk/drivers/w1/w1_smem.c
+++ b/trunk/drivers/w1/w1_smem.c
@@ -99,19 +99,37 @@ static ssize_t w1_smem_read_bin(struct kobject *kobj, char *buf, loff_t off, siz
 	return count;
 }
 
-static struct w1_family w1_smem_family = {
-	.fid = W1_FAMILY_SMEM,
+static struct w1_family w1_smem_family_01 = {
+	.fid = W1_FAMILY_SMEM_01,
+	.fops = &w1_smem_fops,
+};
+
+static struct w1_family w1_smem_family_81 = {
+	.fid = W1_FAMILY_SMEM_81,
 	.fops = &w1_smem_fops,
 };
 
 static int __init w1_smem_init(void)
 {
-	return w1_register_family(&w1_smem_family);
+	int err;
+
+	err = w1_register_family(&w1_smem_family_01);
+	if (err)
+		return err;
+	
+	err = w1_register_family(&w1_smem_family_81);
+	if (err) {
+		w1_unregister_family(&w1_smem_family_01);
+		return err;
+	}
+
+	return 0;
 }
 
 static void __exit w1_smem_fini(void)
 {
-	w1_unregister_family(&w1_smem_family);
+	w1_unregister_family(&w1_smem_family_01);
+	w1_unregister_family(&w1_smem_family_81);
 }
 
 module_init(w1_smem_init);