diff --git a/plugins/dfu/dfu-chunked.c b/plugins/dfu/dfu-chunked.c
index 5cec92c7a..e2abe8c85 100644
--- a/plugins/dfu/dfu-chunked.c
+++ b/plugins/dfu/dfu-chunked.c
@@ -183,3 +183,27 @@ dfu_chunked_new (const guint8 *data,
 	}
 	return segments;
 }
+
+/**
+ * dfu_chunked_new_from_bytes:
+ * @blob: a #GBytes
+ * @addr_start: the hardware address offset, or 0
+ * @page_sz: the hardware page size, or 0
+ * @packet_sz: the transfer size, or 0
+ *
+ * Chunks a linear blob of memory into packets, ensuring each packet does not
+ * cross a package boundary and is less that a specific transfer size.
+ *
+ * Return value: (element-type DfuChunkedPacket): array of packets
+ **/
+GPtrArray *
+dfu_chunked_new_from_bytes (GBytes *blob,
+			    guint32 addr_start,
+			    guint32 page_sz,
+			    guint32 packet_sz)
+{
+	gsize sz;
+	const guint8 *data = g_bytes_get_data (blob, &sz);
+	return dfu_chunked_new (data, (guint32) sz,
+				addr_start, page_sz, packet_sz);
+}
diff --git a/plugins/dfu/dfu-chunked.h b/plugins/dfu/dfu-chunked.h
index e99a9f68d..7d03373bc 100644
--- a/plugins/dfu/dfu-chunked.h
+++ b/plugins/dfu/dfu-chunked.h
@@ -48,6 +48,10 @@ GPtrArray	*dfu_chunked_new			(const guint8	*data,
 							 guint32	 addr_start,
 							 guint32	 page_sz,
 							 guint32	 packet_sz);
+GPtrArray	*dfu_chunked_new_from_bytes		(GBytes		*blob,
+							 guint32	 addr_start,
+							 guint32	 page_sz,
+							 guint32	 packet_sz);
 
 G_END_DECLS