udevd.h

   1 /*
   2  * udevd.h
   3  *
   4  * Userspace devfs
   5  *
   6  * Copyright (C) 2004 Ling, Xiaofeng <xiaofeng.ling@intel.com>
   7  * Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
   8  *
   9  *
  10  *      This program is free software; you can redistribute it and/or modify it
  11  *      under the terms of the GNU General Public License as published by the
  12  *      Free Software Foundation version 2 of the License.
  13  *
  14  *      This program is distributed in the hope that it will be useful, but
  15  *      WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  *      General Public License for more details.
  18  *
  19  *      You should have received a copy of the GNU General Public License along
  20  *      with this program; if not, write to the Free Software Foundation, Inc.,
  21  *      675 Mass Ave, Cambridge, MA 02139, USA.
  22  *
  23  */
  24
  25 #include "list.h"
  26
  27 /*
  28  * FIXME: udev_root is post compile configurable and may also be
  29  * mounted over at any time and /var/run/ and /tmp/ is unusable,
  30  * cause it's cleaned at system startup, long _after_ udevd is
  31  * already running. Should we use udev_init_config()?
  32  */
  33
  34 #define UDEV_MAGIC                      "udev_" UDEV_VERSION
  35 #define EVENT_TIMEOUT_SEC               5
  36 #define UDEVSEND_CONNECT_RETRY          20 /* x 100 millisec */
  37 #define UDEVD_SOCKET                    UDEV_ROOT ".udevd.socket"
  38 #define UDEVD_LOCK                      UDEV_ROOT ".udevd.pid"
  39
  40 struct hotplug_msg {
  41         char magic[20];
  42         struct list_head list;
  43         pid_t pid;
  44         int seqnum;
  45         time_t queue_time;
  46         char action[8];
  47         char devpath[128];
  48         char subsystem[16];
  49 };