X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fdmm%2Fut372.c;h=ce21273b688a9f63a9f11a942bb5a545dd3e68da;hb=HEAD;hp=41d5a62b95f3f8602d58e4c56df1ea750faacdde;hpb=b02bb45f4cf6378520e5a5b82ff39013cfa270b6;p=libsigrok.git

diff --git a/src/dmm/ut372.c b/src/dmm/ut372.c
index 41d5a62b..ce21273b 100644
--- a/src/dmm/ut372.c
+++ b/src/dmm/ut372.c
@@ -14,8 +14,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
@@ -90,8 +89,9 @@ SR_PRIV gboolean sr_ut372_packet_valid(const uint8_t *buf)
 SR_PRIV int sr_ut372_parse(const uint8_t *buf, float *floatval,
 		struct sr_datafeed_analog *analog, void *info)
 {
-	unsigned int i, j, value, divisor;
+	unsigned int i, j, value;
 	uint8_t segments, flags1, flags2;
+	int exponent;
 
 	(void) info;
 
@@ -116,7 +116,7 @@ SR_PRIV int sr_ut372_parse(const uint8_t *buf, float *floatval,
 		analog->meaning->mqflags |= SR_MQFLAG_AVG;
 
 	value = 0;
-	divisor = 1;
+	exponent = 0;
 
 	for (i = 0; i < 5; i++) {
 		segments = decode_pair(buf + 1 + (2 * i));
@@ -127,10 +127,13 @@ SR_PRIV int sr_ut372_parse(const uint8_t *buf, float *floatval,
 			}
 		}
 		if (segments & DECIMAL_POINT_MASK)
-			divisor = pow(10, i);
+			exponent = -i;
 	}
 
-	*floatval = (float) value / divisor;
+	*floatval = (float) value * powf(10, exponent);
+
+	analog->encoding->digits = -exponent;
+	analog->spec->spec_digits = -exponent;
 
 	return SR_OK;
 }