udev.h

   1 /*
   2  * udev.h
   3  *
   4  * Userspace devfs
   5  *
   6  * Copyright (C) 2003 Greg Kroah-Hartman <greg@kroah.com>
   7  *
   8  *      This program is free software; you can redistribute it and/or modify it
   9  *      under the terms of the GNU General Public License as published by the
  10  *      Free Software Foundation version 2 of the License.
  11  *
  12  *      This program is distributed in the hope that it will be useful, but
  13  *      WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  *      General Public License for more details.
  16  *
  17  *      You should have received a copy of the GNU General Public License along
  18  *      with this program; if not, write to the Free Software Foundation, Inc.,
  19  *      675 Mass Ave, Cambridge, MA 02139, USA.
  20  *
  21  */
  22
  23 #ifndef _UDEV_H_
  24 #define _UDEV_H_
  25
  26 #include <sys/param.h>
  27 #include "libsysfs/sysfs/libsysfs.h"
  28
  29 #define ALARM_TIMEOUT                   30
  30 #define COMMENT_CHARACTER               '#'
  31
  32 #define NAME_SIZE                       256
  33 #define OWNER_SIZE                      30
  34 #define GROUP_SIZE                      30
  35 #define MODE_SIZE                       8
  36
  37 #define ACTION_SIZE                     32
  38 #define DEVPATH_SIZE                    256
  39 #define SUBSYSTEM_SIZE                  32
  40 #define SEQNUM_SIZE                     32
  41
  42 #define LINE_SIZE                       256
  43
  44 #define FAKE                            1
  45 #define NOFAKE                          0
  46
  47 /* length of public data to store in udevdb */
  48 #define UDEVICE_LEN (offsetof(struct udevice, bus_id))
  49
  50 struct udevice {
  51         char name[NAME_SIZE];
  52         char owner[OWNER_SIZE];
  53         char group[GROUP_SIZE];
  54         char type;
  55         int major;
  56         int minor;
  57         unsigned int mode;      /* not mode_t due to conflicting definitions in different libcs */
  58         char symlink[NAME_SIZE];
  59         int partitions;
  60         int config_line;
  61         char config_file[NAME_SIZE];
  62         long config_uptime;
  63
  64         /* private data that help us in building strings */
  65         char bus_id[SYSFS_NAME_LEN];
  66         char program_result[NAME_SIZE];
  67         char kernel_number[NAME_SIZE];
  68         char kernel_name[NAME_SIZE];
  69 };
  70
  71 extern int udev_add_device(const char *path, const char *subsystem, int fake);
  72 extern int udev_remove_device(const char *path, const char *subsystem);
  73 extern void udev_init_config(void);
  74 extern int udev_start(void);
  75 extern int parse_get_pair(char **orig_string, char **left, char **right);
  76 extern void dev_d_send(struct udevice *dev, const char *subsystem,
  77         const char *devpath);
  78
  79 extern char **main_argv;
  80 extern char **main_envp;
  81 extern char sysfs_path[SYSFS_PATH_MAX];
  82 extern char udev_root[PATH_MAX];
  83 extern char udev_db_filename[PATH_MAX+NAME_MAX];
  84 extern char udev_permissions_filename[PATH_MAX+NAME_MAX];
  85 extern char udev_config_filename[PATH_MAX+NAME_MAX];
  86 extern char udev_rules_filename[PATH_MAX+NAME_MAX];
  87 extern char default_mode_str[MODE_SIZE];
  88 extern char default_owner_str[OWNER_SIZE];
  89 extern char default_group_str[GROUP_SIZE];
  90 extern int udev_log;
  91 extern int udev_dev_d;
  92
  93 #endif