X-Git-Url: http://sigrok.org/gitweb/?a=blobdiff_plain;f=proto.h;h=870dc985d74d5fb4509f0503d4170658b2073191;hb=721ecf3d97aa6e84e6d61b3c25023e9177895025;hp=c93a796e94b50359a51f55737cbf30c85b9cba71;hpb=44fc870c9cc5c0e53b47b9d7fa3dffe81731ee3c;p=libsigrok.git

diff --git a/proto.h b/proto.h
index c93a796e..870dc985 100644
--- a/proto.h
+++ b/proto.h
@@ -89,7 +89,7 @@ SR_API const struct sr_hwcap_option *sr_devopt_name_get(const char *optname);
 /*--- session.c -------------------------------------------------------------*/
 
 typedef void (*sr_datafeed_callback_t)(const struct sr_dev_inst *sdi,
-		struct sr_datafeed_packet *packet);
+		const struct sr_datafeed_packet *packet);
 
 /* Session setup */
 SR_API int sr_session_load(const char *filename);