add clarifying comment

Author: hcarter-775

drivers/SmartThings/matter-switch/src/utils/device_configuration.lua

@@ -31,9 +31,10 @@ local DeviceConfiguration = {}
 local SwitchDeviceConfiguration = {}
 local ButtonDeviceConfiguration = {}
 
-function SwitchDeviceConfiguration.assign_profile_for_onoff_ep(device, onoff_ep_id, is_child_device)
-  local ep_info = switch_utils.get_endpoint_info(device, onoff_ep_id)
+function SwitchDeviceConfiguration.assign_profile_for_onoff_ep(device, server_onoff_ep_id, is_child_device)
+  local ep_info = switch_utils.get_endpoint_info(device, server_onoff_ep_id)
 
+  -- per spec, the Switch device types support OnOff as CLIENT, though some vendors break spec and support it as SERVER.
   local primary_dt_id = switch_utils.find_max_subset_device_type(ep_info, fields.DEVICE_TYPE_ID.LIGHT)
     or switch_utils.find_max_subset_device_type(ep_info, fields.DEVICE_TYPE_ID.SWITCH)
     or ep_info.device_types[1] and ep_info.device_types[1].device_type_id
@@ -51,14 +52,14 @@ function SwitchDeviceConfiguration.assign_profile_for_onoff_ep(device, onoff_ep_
     for _, vendor in pairs(fields.child_device_profile_overrides_per_vendor_id) do
       for _, fingerprint in ipairs(vendor) do
         if device.manufacturer_info.product_id == fingerprint.product_id and
-           ((device.manufacturer_info.vendor_id == fields.AQARA_MANUFACTURER_ID and onoff_ep_id == 1) or generic_profile == fingerprint.initial_profile) then
+           ((device.manufacturer_info.vendor_id == fields.AQARA_MANUFACTURER_ID and server_onoff_ep_id == 1) or generic_profile == fingerprint.initial_profile) then
             return fingerprint.target_profile
         end
       end
     end
   end
 
-  -- if no supported device type is found, return switch-binary as the generic profile
+  -- if no supported device type is found, return switch-binary as a generic "OnOff EP" profile
   return generic_profile or "switch-binary"
 end