hp-3478a: Fix range strings for current and resistance mode

The range strings for the resistance mode were missing the unit (R). The
range strings for both current modes (DC and AC) were wrongly using volts
instead of amps.

Author: knarfS

src/hardware/hp-3478a/api.c

@@ -71,21 +71,21 @@ static const struct {
 	{SR_MQ_VOLTAGE, SR_MQFLAG_AC,               2,   "300V"},
 	/* -99 is a dummy exponent for auto ranging. */
 	{SR_MQ_CURRENT, SR_MQFLAG_DC,             -99,   "Auto"},
-	{SR_MQ_CURRENT, SR_MQFLAG_DC,              -1,   "300mV"},
-	{SR_MQ_CURRENT, SR_MQFLAG_DC,               0,   "3V"},
+	{SR_MQ_CURRENT, SR_MQFLAG_DC,              -1,   "300mA"},
+	{SR_MQ_CURRENT, SR_MQFLAG_DC,               0,   "3A"},
 	/* -99 is a dummy exponent for auto ranging. */
 	{SR_MQ_CURRENT, SR_MQFLAG_AC,             -99,   "Auto"},
-	{SR_MQ_CURRENT, SR_MQFLAG_AC,              -1,   "300mV"},
-	{SR_MQ_CURRENT, SR_MQFLAG_AC,               0,   "3V"},
+	{SR_MQ_CURRENT, SR_MQFLAG_AC,              -1,   "300mA"},
+	{SR_MQ_CURRENT, SR_MQFLAG_AC,               0,   "3A"},
 	/* -99 is a dummy exponent for auto ranging. */
 	{SR_MQ_RESISTANCE, 0,                     -99,   "Auto"},
-	{SR_MQ_RESISTANCE, 0,                       1,   "30"},
-	{SR_MQ_RESISTANCE, 0,                       2,   "300"},
-	{SR_MQ_RESISTANCE, 0,                       3,   "3k"},
-	{SR_MQ_RESISTANCE, 0,                       4,   "30k"},
-	{SR_MQ_RESISTANCE, 0,                       5,   "300k"},
-	{SR_MQ_RESISTANCE, 0,                       6,   "3M"},
-	{SR_MQ_RESISTANCE, 0,                       7,   "30M"},
+	{SR_MQ_RESISTANCE, 0,                       1,   "30R"},
+	{SR_MQ_RESISTANCE, 0,                       2,   "300R"},
+	{SR_MQ_RESISTANCE, 0,                       3,   "3kR"},
+	{SR_MQ_RESISTANCE, 0,                       4,   "30kR"},
+	{SR_MQ_RESISTANCE, 0,                       5,   "300kR"},
+	{SR_MQ_RESISTANCE, 0,                       6,   "3MR"},
+	{SR_MQ_RESISTANCE, 0,                       7,   "30MR"},
 	/* -99 is a dummy exponent for auto ranging. */
 	{SR_MQ_RESISTANCE, SR_MQFLAG_FOUR_WIRE,   -99,   "Auto"},
 	{SR_MQ_RESISTANCE, SR_MQFLAG_FOUR_WIRE,     1,   "30R"},