+static acpi_status hpled_acpi_write(acpi_handle handle, int reg)
+{
+ unsigned long long ret; /* Not used when writing */
+ union acpi_object in_obj[1];
+ struct acpi_object_list args = { 1, in_obj };
+
+ in_obj[0].type = ACPI_TYPE_INTEGER;
+ in_obj[0].integer.value = reg;
+
+ return acpi_evaluate_integer(handle, "ALED", &args, &ret);
+}
+
+static void hpled_set(struct led_classdev *led_cdev,
+ enum led_brightness value)
+{
+ hpled_acpi_write(adev.device->handle, !!value);
+}
+
+static struct led_classdev hpled_led = {
+ .name = "hp:red:hddprotection",
+ .default_trigger = "none",
+ .brightness_set = hpled_set,
+};