Quelle  smartconnect.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0+
/*
 *  Copyright 2013 Matthew Garrett <mjg59@srcf.ucam.org>
 */

#include <linux/acpi.h>
#include <linux/module.h>

MODULE_DESCRIPTION("Intel Smart Connect disabling driver");
MODULE_LICENSE("GPL");

static int smartconnect_acpi_init(struct acpi_device *acpi)
{
 unsigned long long value;
 acpi_status status;

 status = acpi_evaluate_integer(acpi->handle, "GAOS", NULL, &value);
 if (ACPI_FAILURE(status))
  return -EINVAL;

 if (value & 0x1) {
  dev_info(&acpi->dev, "Disabling Intel Smart Connect\n");
  status = acpi_execute_simple_method(acpi->handle, "SAOS", 0);
 }

 return 0;
}

static const struct acpi_device_id smartconnect_ids[] = {
 {"INT33A0", 0},
 {"", 0}
};
MODULE_DEVICE_TABLE(acpi, smartconnect_ids);

static struct acpi_driver smartconnect_driver = {
 .name = "intel_smart_connect",
 .class = "intel_smart_connect",
 .ids = smartconnect_ids,
 .ops = {
  .add = smartconnect_acpi_init,
 },
};

module_acpi_driver(smartconnect_driver);