X-Git-Url: http://sigrok.org/gitweb/?a=blobdiff_plain;f=libsigrok.h;h=9946691e267503cd6fab4abfbf681da39d83b334;hb=16d6e56d124dcedf7273212bbfab1aed6ac7e7aa;hp=a1a50e422d043f7e1c2c0ae34647fb157a550318;hpb=4f3bd685e695790ff578d17d0ed95c00784e58fa;p=libsigrok.git

diff --git a/libsigrok.h b/libsigrok.h
index a1a50e42..9946691e 100644
--- 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. */
@@ -209,6 +210,11 @@ enum {
 	SR_UNIT_UNITLESS,
 	/** Sound pressure level relative so 20 micropascals. */
 	SR_UNIT_DECIBEL_SPL,
+	/**
+	 * Normalized (0 to 1) concentration of a substance or compound with 0
+	 * representing a concentration of 0%, and 1 being 100%. This is
+	 * represented as the fraction of number of particles of the substance.
+	 */
 	SR_UNIT_CONCENTRATION,
 };