grove: Small changes to build grove library

* Removed relay and rotary from grove library
    * Removed relay and rotary from grove SWIG interfaces
    * Fixed warning for o2 printf %
    * Fixed return value warning for _get_normalized method used by
      my analog sensors.

Signed-off-by: Noel Eck <noel.eck@intel.com>

examples/c++/relay.cxx

@@ -24,7 +24,7 @@
 
 #include <unistd.h>
 #include <iostream>
-#include "grove.hpp"
+#include "relay.hpp"
 
 int
 main(int argc, char **argv)

examples/c++/rotary.cxx

@@ -25,7 +25,7 @@
 #include <unistd.h>
 #include <iostream>
 #include <iomanip>
-#include "grove.hpp"
+#include "rotary.hpp"
 
 using namespace std;
 

examples/c/o2.c

@@ -59,7 +59,7 @@ int main()
         o2_get_raw_volts(sensor, &raw_volts);
         o2_get_value(sensor, &o2_percent);
 
-        printf("O2 raw volts: %0.03f v, o2: %0.03f %\n",
+        printf("O2 raw volts: %0.03f v, o2: %0.03f %%\n",
                 raw_volts, o2_percent);
 
         usleep(500000);

src/emg/emg.c

@@ -94,6 +94,7 @@ upm_result_t emg_get_normalized(const emg_context dev, float *value)
     *value = mraa_aio_read_float(dev->aio);
     if (*value < 0)
         return UPM_ERROR_OPERATION_FAILED;
+    return UPM_SUCCESS;
 }
 
 upm_result_t emg_get_raw_volts(const emg_context dev, float *value)

src/flex/flex.c

@@ -94,6 +94,7 @@ upm_result_t flex_get_normalized(const flex_context dev, float *value)
     *value = mraa_aio_read_float(dev->aio);
     if (*value < 0)
         return UPM_ERROR_OPERATION_FAILED;
+    return UPM_SUCCESS;
 }
 
 upm_result_t flex_get_raw_volts(const flex_context dev, float *value)

src/gas/mqx.c

@@ -94,6 +94,7 @@ upm_result_t mqx_get_normalized(const mqx_context dev, float *value)
     *value = mraa_aio_read_float(dev->aio);
     if (*value < 0)
         return UPM_ERROR_OPERATION_FAILED;
+    return UPM_SUCCESS;
 }
 
 upm_result_t mqx_get_raw_volts(const mqx_context dev, float *value)

src/grove/grove.hpp

@@ -27,6 +27,4 @@
 
 #include <grovebutton.hpp>
 #include <groveled.hpp>
-#include <relay.hpp>
-#include <rotary.hpp>
 #include <grovetemp.hpp>

src/grove/javaupm_grove.i

@@ -24,16 +24,6 @@
     #include "groveled.hpp"
 %}
 
-%include "relay.hpp"
-%{
-    #include "relay.hpp"
-%}
-
-%include "rotary.hpp"
-%{
-    #include "rotary.hpp"
-%}
-
 %include "grovetemp.hpp"
 %{
     #include "grovetemp.hpp"

src/grove/jsupm_grove.i

@@ -21,16 +21,6 @@
     #include "groveled.hpp"
 %}
 
-%include "relay.hpp"
-%{
-    #include "relay.hpp"
-%}
-
-%include "rotary.hpp"
-%{
-    #include "rotary.hpp"
-%}
-
 %include "grovetemp.hpp"
 %{
     #include "grovetemp.hpp"

src/grove/pyupm_grove.i

@@ -25,16 +25,6 @@
     #include "groveled.hpp"
 %}
 
-%include "relay.hpp"
-%{
-    #include "relay.hpp"
-%}
-
-%include "rotary.hpp"
-%{
-    #include "rotary.hpp"
-%}
-
 %include "grovetemp.hpp"
 %{
     #include "grovetemp.hpp"

src/gsr/gsr.c

@@ -94,6 +94,7 @@ upm_result_t gsr_get_normalized(const gsr_context dev, float *value)
     *value = mraa_aio_read_float(dev->aio);
     if (*value < 0)
         return UPM_ERROR_OPERATION_FAILED;
+    return UPM_SUCCESS;
 }
 
 upm_result_t gsr_get_raw_volts(const gsr_context dev, float *value)

src/ldt0028/ldt0028.c

@@ -94,6 +94,7 @@ upm_result_t ldt0028_get_normalized(const ldt0028_context dev, float *value)
     *value = mraa_aio_read_float(dev->aio);
     if (*value < 0)
         return UPM_ERROR_OPERATION_FAILED;
+    return UPM_SUCCESS;
 }
 
 upm_result_t ldt0028_get_raw_volts(const ldt0028_context dev, float *value)

src/light/light.c

@@ -95,6 +95,7 @@ upm_result_t light_get_normalized(const light_context dev, float *value)
     *value = mraa_aio_read_float(dev->aio);
     if (*value < 0)
         return UPM_ERROR_OPERATION_FAILED;
+    return UPM_SUCCESS;
 }
 
 upm_result_t light_get_raw_volts(const light_context dev, float *value)

src/slide/slide.c

@@ -94,6 +94,7 @@ upm_result_t slide_get_normalized(const slide_context dev, float *value)
     *value = mraa_aio_read_float(dev->aio);
     if (*value < 0)
         return UPM_ERROR_OPERATION_FAILED;
+    return UPM_SUCCESS;
 }
 
 upm_result_t slide_get_raw_volts(const slide_context dev, float *value)