X-Git-Url: http://sigrok.org/gitweb/?a=blobdiff_plain;f=sigrok-proto.h;h=ee099eccd9ef34457860f4adc99a415182f2d057;hb=7583b99dbb2310ce2e34fd435c42634dec940ad6;hp=ad7068e5b1a7d1b32a9eae79434a3444bba94e8b;hpb=8722c31e26ecebfc75035a566d4d72d07761ef14;p=libsigrok.git

diff --git a/sigrok-proto.h b/sigrok-proto.h
index ad7068e5..ee099ecc 100644
--- a/sigrok-proto.h
+++ b/sigrok-proto.h
@@ -61,8 +61,8 @@ gboolean sr_device_has_hwcap(struct sr_device *device, int hwcap);
 /*--- filter.c --------------------------------------------------------------*/
 
 int sr_filter_probes(int in_unitsize, int out_unitsize, int *probelist,
-		     const char *data_in, uint64_t length_in, char **data_out,
-		     uint64_t *length_out);
+		     const unsigned char *data_in, uint64_t length_in,
+		     char **data_out, uint64_t *length_out);
 
 /*--- hwplugin.c ------------------------------------------------------------*/