Added ALS0 ACPI sample

Docs/AcpiSamples/SSDT-ALS0.dsl

@@ -0,0 +1,37 @@
+/*
+ * Starting with macOS 10.15 Ambient Light Sensor presence is required for backlight functioning.
+ * Here we create an Ambient Light Sensor ACPI Device, which can be used by SMCBacklightSensor kext
+ * to report either dummy (when no device is present) or valid values through SMC interface.
+ */
+DefinitionBlock ("", "SSDT", 2, "ACDT", "ALS0", 0x00000000)
+{
+    Scope (_SB)
+    {
+        Device (ALS0)
+        {
+            Name (_HID, "ACPI0008" /* Ambient Light Sensor Device */)  // _HID: Hardware ID
+            Name (_CID, "smc-als")  // _CID: Compatible ID
+            Name (_ALI, 0x012C)  // _ALI: Ambient Light Illuminance
+            Name (_ALR, Package (0x01)  // _ALR: Ambient Light Response
+            {
+                Package (0x02)
+                {
+                    0x64, 
+                    0x012C
+                }
+            })
+            Method (_STA, 0, NotSerialized)  // _STA: Status
+            {
+                If (_OSI ("Darwin"))
+                {
+                    Return (0x0F)
+                }
+                Else
+                {
+                    Return (Zero)
+                }
+            }
+        }
+    }
+}
+