rdtech-um: increase digits count for models with higher resolution

The table of UM25C channels differs from other models. The V and I
channels provide a higher resolution, their scaling factors differ.
Update the number of significant digits, too, which went unnoticed.

diff --git a/src/hardware/rdtech-um/protocol.c b/src/hardware/rdtech-um/protocol.c
index 04de768713ac04d2d6c039454e1b7982610466cb..dd254362a388da30472cb7f73eb6cf2d7e8205f6 100644 (file)
--- a/src/hardware/rdtech-um/protocol.c
+++ b/src/hardware/rdtech-um/protocol.c
@@ -46,8 +46,8 @@ static const struct binary_analog_channel rdtech_default_channels[] = {
 };
 
 static const struct binary_analog_channel rdtech_um25c_channels[] = {
-       { "V", { 2, BVT_BE_UINT16, 0.001, }, 2, SR_MQ_VOLTAGE, SR_UNIT_VOLT },
-       { "I", { 4, BVT_BE_UINT16, 0.0001, }, 3, SR_MQ_CURRENT, SR_UNIT_AMPERE },
+       { "V", { 2, BVT_BE_UINT16, 0.001, }, 3, SR_MQ_VOLTAGE, SR_UNIT_VOLT },
+       { "I", { 4, BVT_BE_UINT16, 0.0001, }, 4, SR_MQ_CURRENT, SR_UNIT_AMPERE },
        { "D+", { 96, BVT_BE_UINT16, 0.01, }, 2, SR_MQ_VOLTAGE, SR_UNIT_VOLT },
        { "D-", { 98, BVT_BE_UINT16, 0.01, }, 2, SR_MQ_VOLTAGE, SR_UNIT_VOLT },
        { "T", { 10, BVT_BE_UINT16, 1.0, }, 0, SR_MQ_TEMPERATURE, SR_UNIT_CELSIUS },