udev_sysfs.h

   1 /*
   2  * udev_sysfs.h
   3  *
   4  * Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
   5  * Copyright (C) 2004 Greg Kroah-Hartman <greg@kroah.com>
   6  *
   7  *      This program is free software; you can redistribute it and/or modify it
   8  *      under the terms of the GNU General Public License as published by the
   9  *      Free Software Foundation version 2 of the License.
  10  *
  11  *      This program is distributed in the hope that it will be useful, but
  12  *      WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  *      General Public License for more details.
  15  *
  16  *      You should have received a copy of the GNU General Public License along
  17  *      with this program; if not, write to the Free Software Foundation, Inc.,
  18  *      675 Mass Ave, Cambridge, MA 02139, USA.
  19  *
  20  */
  21
  22 #ifndef _UDEV_SYSFS_H_
  23 #define _UDEV_SYSFS_H_
  24
  25 #include "libsysfs/sysfs/libsysfs.h"
  26
  27 #define WAIT_MAX_SECONDS                5
  28 #define WAIT_LOOP_PER_SECOND            20
  29
  30 extern int subsystem_expect_no_dev(const char *subsystem);
  31
  32 /* /sys/class /sys/block devices */
  33 extern struct sysfs_class_device *wait_class_device_open(const char *path);
  34 extern int wait_for_class_device(struct sysfs_class_device *class_dev, const char **error);
  35
  36 /* /sys/devices devices */
  37 extern struct sysfs_device *wait_devices_device_open(const char *path);
  38 extern int wait_for_devices_device(struct sysfs_device *devices_dev, const char **error);
  39
  40 #endif /* _UDEV_SYSFS_H_ */