drivers/iio/industrialio-configfs.c

   1 /*
   2  * Industrial I/O configfs bits
   3  *
   4  * Copyright (c) 2015 Intel Corporation
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License version 2 as published by
   8  * the Free Software Foundation.
   9  */
  10
  11 #include <linux/configfs.h>
  12 #include <linux/module.h>
  13 #include <linux/init.h>
  14 #include <linux/kmod.h>
  15 #include <linux/slab.h>
  16
  17 #include <linux/iio/iio.h>
  18 #include <linux/iio/configfs.h>
  19
  20 static const struct config_item_type iio_root_group_type = {
  21         .ct_owner       = THIS_MODULE,
  22 };
  23
  24 struct configfs_subsystem iio_configfs_subsys = {
  25         .su_group = {
  26                 .cg_item = {
  27                         .ci_namebuf = "iio",
  28                         .ci_type = &iio_root_group_type,
  29                 },
  30         },
  31         .su_mutex = __MUTEX_INITIALIZER(iio_configfs_subsys.su_mutex),
  32 };
  33 EXPORT_SYMBOL(iio_configfs_subsys);
  34
  35 static int __init iio_configfs_init(void)
  36 {
  37         config_group_init(&iio_configfs_subsys.su_group);
  38
  39         return configfs_register_subsystem(&iio_configfs_subsys);
  40 }
  41 module_init(iio_configfs_init);
  42
  43 static void __exit iio_configfs_exit(void)
  44 {
  45         configfs_unregister_subsystem(&iio_configfs_subsys);
  46 }
  47 module_exit(iio_configfs_exit);
  48
  49 MODULE_AUTHOR("Daniel Baluta <daniel.baluta@intel.com>");
  50 MODULE_DESCRIPTION("Industrial I/O configfs support");
  51 MODULE_LICENSE("GPL v2");