analog: improve output readability by using SI prefix

[libsigrok.git] / include / libsigrok / proto.h

diff --git a/include/libsigrok/proto.h b/include/libsigrok/proto.h
index bd7250571cb9c75143c59fa215b3d9fa7b5136b8..c799919e267a710dfed69de94db5a303dec8edd9 100644 (file)
--- a/include/libsigrok/proto.h
+++ b/include/libsigrok/proto.h
@@ -30,12 +30,15 @@
 
 SR_API int sr_analog_to_float(const struct sr_datafeed_analog *analog,
                float *buf);
+SR_API const char *sr_analog_si_prefix(float *value, int *digits);
 SR_API int sr_analog_unit_to_string(const struct sr_datafeed_analog *analog,
                char **result);
 SR_API void sr_rational_set(struct sr_rational *r, int64_t p, uint64_t q);
 SR_API int sr_rational_eq(const struct sr_rational *a, const struct sr_rational *b);
 SR_API int sr_rational_mult(struct sr_rational *res, const struct sr_rational *a,
                const struct sr_rational *b);
+SR_API int sr_rational_div(struct sr_rational *res, const struct sr_rational *num,
+               const struct sr_rational *div);
 
 /*--- backend.c -------------------------------------------------------------*/