mpm: sys_utils: Get list of temperatures from all thermal zones

1 files changed, 21 insertions, 4 deletions

diff --git a/mpm/python/usrp_mpm/sys_utils/sysfs_thermal.py b/mpm/python/usrp_mpm/sys_utils/sysfs_thermal.py
index a5df76858..7409fbe17 100644
--- a/mpm/python/usrp_mpm/sys_utils/sysfs_thermal.py
+++ b/mpm/python/usrp_mpm/sys_utils/sysfs_thermal.py
@@ -8,6 +8,23 @@ sysfs thermal sensors API
 
 import pyudev
 
+def read_thermal_sensors_value(sensor_type, data_probe):
+    """
+    This function will return a list of all the float value of
+    the thermal sensor subsystem = 'thermal' and type = sensor_type
+
+    Arguments:
+    sensor_type -- Is attribute "type" of udev.  This can be fpga-thermal-zone,
+                   magnesium-db0-zone, croc-ec-thermal etc.
+    data_probe -- is one of the attribute of that sensor. This can be 'temp' in
+                  the case of thermal-zone or 'cur_state' in the case of a
+                  cooling device.
+    """
+    reading_sensors = [x.attributes.asint(data_probe) for x in pyudev.Context()
+                       .list_devices(subsystem='thermal')
+                       .match_attribute('type', sensor_type)]
+    return reading_sensors
+
 def read_thermal_sensor_value(sensor_type, data_probe):
     """
     This function will return the float value of the thermal sensor
@@ -20,7 +37,7 @@ def read_thermal_sensor_value(sensor_type, data_probe):
                   the case of thermal-zone or 'cur_state' in the case of a
                   cooling device.
     """
-    reading_sensors = [x.attributes.asint(data_probe) for x in pyudev.Context()
-                       .list_devices(subsystem='thermal')
-                       .match_attribute('type', sensor_type)]
-    return reading_sensors[0]
+    sensor_val = read_thermal_sensors_value(sensor_type, data_probe)
+    if not sensor_val:
+        raise IndexError("No {} attribute found for {} sensor.".format(data_probe, sensor_type))
+    return sensor_val[0]