Other method to avoid "unused var" compiler warnings.

[libsigrok.git] / filter.c

diff --git a/filter.c b/filter.c
index 7c4fd0b5b0444478a9ee54a3066267c47b9b218b..80cef6abc47fc67f0f546148f85993a9a851f3e9 100644 (file)
--- a/filter.c
+++ b/filter.c
@@ -39,8 +39,8 @@
  * @return SR_OK upon success, SR_ERR_MALLOC upon memory allocation errors.
  */
 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)
 {
        unsigned int in_offset, out_offset;
        int num_enabled_probes, out_bit, i;