sr: added mqflags field to sr_datafeed_analog

diff --git a/libsigrok.h b/libsigrok.h
index 20e5c444d681a1d4db379216e810049d36cf0348..53905b6f8127a5965066270c4448e0268b707b36 100644 (file)
--- a/libsigrok.h
+++ b/libsigrok.h
@@ -162,6 +162,28 @@ enum {
        SR_UNIT_BOOLEAN,
 };
 
+/** sr_datafeed_analog.flags values */
+enum {
+       /** Voltage measurement is alternating current. */
+       SR_MQFLAG_AC = 0x01,
+       /** Voltage measurement is direct current. */
+       SR_MQFLAG_DC = 0x02,
+       /** This is a true RMS measurement. */
+       SR_MQFLAG_RMS = 0x04,
+       /** Value is voltage drop across a diode, or NAN. */
+       SR_MQFLAG_DIODE = 0x08,
+       /** Device is in "hold" mode, i.e. repeating the last measurement. */
+       SR_MQFLAG_HOLD = 0x10,
+       /** Device is in "max" mode, only updating when a new max value is found. */
+       SR_MQFLAG_MAX = 0x20,
+       /** Device is in "min" mode, only updating when a new min value is found. */
+       SR_MQFLAG_MIN = 0x40,
+       /** Device is in autoranging mode. */
+       SR_MQFLAG_AUTORANGE = 0x80,
+       /** Device is in relative mode. */
+       SR_MQFLAG_RELATIVE = 0x100,
+};
+
 struct sr_datafeed_packet {
        uint16_t type;
        void *payload;
@@ -189,8 +211,12 @@ struct sr_datafeed_meta_analog {
 
 struct sr_datafeed_analog {
        int num_samples;
-       int mq; /* Measured quantity (e.g. voltage, current, temperature) */
-       int unit; /* Unit in which the MQ is measured. */
+       /** Measured quantity (e.g. voltage, current, temperature) */
+       int mq;
+       /** Unit in which the MQ is measured. */
+       int unit;
+       /** Bitmap with extra information about the MQ. */
+       uint64_t mqflags;
        float *data;
 };