X-Git-Url: http://sigrok.org/gitweb/?a=blobdiff_plain;f=libsigrok.h;h=f371c944fd6ff85ac6b699ec1cba06f40f272836;hb=35e199da505f5b8fadffa58875aaca70a8fde4f2;hp=9946691e267503cd6fab4abfbf681da39d83b334;hpb=801c7800c6260a2e12aa2618263a717334946eb8;p=libsigrok.git

diff --git a/libsigrok.h b/libsigrok.h
index 9946691e..f371c944 100644
--- a/libsigrok.h
+++ b/libsigrok.h
@@ -268,7 +268,7 @@ struct sr_context;
 
 struct sr_datafeed_packet {
 	uint16_t type;
-	void *payload;
+	const void *payload;
 };
 
 struct sr_datafeed_header {
@@ -336,7 +336,7 @@ struct sr_output_format {
 	int (*event) (struct sr_output *o, int event_type, uint8_t **data_out,
 		      uint64_t *length_out);
 	GString *(*recv) (struct sr_output *o, const struct sr_dev_inst *sdi,
-			struct sr_datafeed_packet *packet);
+			const struct sr_datafeed_packet *packet);
 	int (*cleanup) (struct sr_output *o);
 };