drivers/iio/industrialio-configfs.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Industrial I/O configfs bits
   4  *
   5  * Copyright (c) 2015 Intel Corporation
   6  */
   7
   8 #include <linux/configfs.h>
   9 #include <linux/module.h>
  10 #include <linux/init.h>
  11 #include <linux/kmod.h>
  12 #include <linux/slab.h>
  13
  14 #include <linux/iio/iio.h>
  15 #include <linux/iio/configfs.h>
  16
  17 static const struct config_item_type iio_root_group_type = {
  18         .ct_owner       = THIS_MODULE,
  19 };
  20
  21 struct configfs_subsystem iio_configfs_subsys = {
  22         .su_group = {
  23                 .cg_item = {
  24                         .ci_namebuf = "iio",
  25                         .ci_type = &iio_root_group_type,
  26                 },
  27         },
  28         .su_mutex = __MUTEX_INITIALIZER(iio_configfs_subsys.su_mutex),
  29 };
  30 EXPORT_SYMBOL(iio_configfs_subsys);
  31
  32 static int __init iio_configfs_init(void)
  33 {
  34         config_group_init(&iio_configfs_subsys.su_group);
  35
  36         return configfs_register_subsystem(&iio_configfs_subsys);
  37 }
  38 module_init(iio_configfs_init);
  39
  40 static void __exit iio_configfs_exit(void)
  41 {
  42         configfs_unregister_subsystem(&iio_configfs_subsys);
  43 }
  44 module_exit(iio_configfs_exit);
  45
  46 MODULE_AUTHOR("Daniel Baluta <daniel.baluta@intel.com>");
  47 MODULE_DESCRIPTION("Industrial I/O configfs support");
  48 MODULE_LICENSE("GPL v2");