add relative humidity MQ

diff --git a/libsigrok.h b/libsigrok.h
index a1a50e422d043f7e1c2c0ae34647fb157a550318..ee1e9e1037fe377bf01022f944b2c1f0045a0bf7 100644 (file)
--- a/libsigrok.h
+++ b/libsigrok.h
@@ -177,6 +177,7 @@ enum {
         * reference value. */
        SR_MQ_SOUND_PRESSURE_LEVEL,
        SR_MQ_CARBON_MONOXIDE,
+       SR_MQ_RELATIVE_HUMIDITY,
 };
 
 /** Values for sr_datafeed_analog.unit. */