diff --git a/hwdriver.c b/hwdriver.c
index 91b0e6d9..f74d47f0 100644
--- a/hwdriver.c
+++ b/hwdriver.c
@@ -193,6 +193,7 @@ SR_PRIV struct sr_dev_inst *sr_dev_inst_new(int index, int status,
 	sdi->vendor = vendor ? g_strdup(vendor) : NULL;
 	sdi->model = model ? g_strdup(model) : NULL;
 	sdi->version = version ? g_strdup(version) : NULL;
+	sdi->probes = NULL;
 	sdi->priv = NULL;
 
 	return sdi;
@@ -222,6 +223,25 @@ SR_PRIV void sr_dev_inst_free(struct sr_dev_inst *sdi)
 	g_free(sdi);
 }
 
+SR_PRIV struct sr_probe *sr_probe_new(int index, int type,
+		gboolean enabled, const char *name)
+{
+	struct sr_probe *probe;
+
+	if (!(probe = g_try_malloc0(sizeof(struct sr_probe)))) {
+		sr_err("hwdriver: probe malloc failed");
+		return NULL;
+	}
+
+	probe->index = index;
+	probe->type = type;
+	probe->enabled = enabled;
+	if (name)
+		probe->name = g_strdup(name);
+
+	return probe;
+}
+
 #ifdef HAVE_LIBUSB_1_0
 
 SR_PRIV struct sr_usb_dev_inst *sr_usb_dev_inst_new(uint8_t bus,
diff --git a/libsigrok-internal.h b/libsigrok-internal.h
index 94ca2bc9..393e668f 100644
--- a/libsigrok-internal.h
+++ b/libsigrok-internal.h
@@ -91,6 +91,8 @@ SR_PRIV struct sr_dev_inst *sr_dev_inst_new(int index, int status,
 		const char *vendor, const char *model, const char *version);
 SR_PRIV struct sr_dev_inst *sr_dev_inst_get(GSList *dev_insts, int dev_index);
 SR_PRIV void sr_dev_inst_free(struct sr_dev_inst *sdi);
+SR_PRIV struct sr_probe *sr_probe_new(int index, int type,
+		gboolean enabled, const char *name);
 
 SR_PRIV int sr_source_remove(int fd);
 SR_PRIV int sr_source_add(int fd, int events, int timeout,
diff --git a/libsigrok.h b/libsigrok.h
index bedfbdb7..42406d54 100644
--- a/libsigrok.h
+++ b/libsigrok.h
@@ -250,7 +250,7 @@ struct sr_dev {
 };
 
 enum {
-	SR_PROBE_TYPE_LOGIC,
+	SR_PROBE_LOGIC,
 };
 
 struct sr_probe {
@@ -402,6 +402,7 @@ struct sr_dev_inst {
 	char *vendor;
 	char *model;
 	char *version;
+	GSList *probes;
 	void *priv;
 };