> we just discussed this on IRC -- there is already a flag for RMS,
> shouldn't this be equivalent to effective voltage/current?
Ah, that's how it is encoded. I was already wondering; but I searched
through the source for "effective" not for RMS.
So, I dropped this patch and modified the following patch as below.
Is this good enough for you guys or shall I resend the whole series?
Thanks,
Wolfram
From: Wolfram Sang <w...@the-dreams.de>
Date: Wed, 30 Dec 2015 14:46:08 +0100
Subject: [PATCH v2] dmm: vc870: support effective voltage & current
Signed-off-by: Wolfram Sang <w...@the-dreams.de>
---
src/dmm/vc870.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/src/dmm/vc870.c b/src/dmm/vc870.c
index 125f471..549ce71 100644
--- a/src/dmm/vc870.c
+++ b/src/dmm/vc870.c
@@ -351,6 +351,14 @@ static void handle_flags(struct sr_datafeed_analog_old
*analog,
// analog->mq = SR_MQ_FREQUENCY;
// analog->unit = SR_UNIT_HERTZ;
}
+ if (info->is_v_a_eff_value) {
+ analog->mqflags |= SR_MQFLAG_RMS;
+ analog->mq = SR_MQ_VOLTAGE;
+ analog->unit = SR_UNIT_VOLT;
+ /* TODO: Handle effective current value */
+ // analog->mq = SR_MQ_CURRENT;
+ // analog->unit = SR_UNIT_AMPERE;
+ }
/* Measurement related flags */
if (info->is_ac)
--
------------------------------------------------------------------------------
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