device/udev_linux/udev.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef DEVICE_UDEV_LINUX_UDEV_H_
   6 #define DEVICE_UDEV_LINUX_UDEV_H_
   7
   8 #include <stdarg.h>
   9 #include <sys/types.h>
  10 #include <sys/stat.h>
  11
  12 #if !defined(USE_UDEV)
  13 #error "USE_UDEV not defined"
  14 #endif
  15
  16 // Adapted from libudev.h.
  17 #define udev_list_entry_foreach(list_entry, first_entry) \
  18   for (list_entry = first_entry; list_entry != NULL;     \
  19        list_entry = ::device::udev_list_entry_get_next(list_entry))
  20
  21 // Forward declarations of opaque structs.
  22 struct udev;
  23 struct udev_device;
  24 struct udev_enumerate;
  25 struct udev_list_entry;
  26 struct udev_monitor;
  27
  28 namespace device {
  29
  30 const char* udev_device_get_action(udev_device* udev_device);
  31 const char* udev_device_get_devnode(udev_device* udev_device);
  32 udev_device* udev_device_get_parent(udev_device* udev_device);
  33 udev_device* udev_device_get_parent_with_subsystem_devtype(
  34     udev_device* udev_device,
  35     const char* subsystem,
  36     const char* devtype);
  37 const char* udev_device_get_property_value(udev_device* udev_device,
  38                                            const char* key);
  39 const char* udev_device_get_subsystem(udev_device* udev_device);
  40 const char* udev_device_get_sysattr_value(udev_device* udev_device,
  41                                           const char* sysattr);
  42 const char* udev_device_get_sysname(udev_device* udev_device);
  43 const char* udev_device_get_syspath(udev_device* udev_device);
  44 udev_device* udev_device_new_from_devnum(udev* udev, char type, dev_t devnum);
  45 udev_device* udev_device_new_from_syspath(udev* udev, const char* syspath);
  46 void udev_device_unref(udev_device* udev_device);
  47 int udev_enumerate_add_match_subsystem(udev_enumerate* udev_enumerate,
  48                                        const char* subsystem);
  49 udev_list_entry* udev_enumerate_get_list_entry(udev_enumerate* udev_enumerate);
  50 udev_enumerate* udev_enumerate_new(udev* udev);
  51 int udev_enumerate_scan_devices(udev_enumerate* udev_enumerate);
  52 void udev_enumerate_unref(udev_enumerate* udev_enumerate);
  53 udev_list_entry* udev_list_entry_get_next(udev_list_entry* list_entry);
  54 const char* udev_list_entry_get_name(udev_list_entry* list_entry);
  55 int udev_monitor_enable_receiving(udev_monitor* udev_monitor);
  56 int udev_monitor_filter_add_match_subsystem_devtype(udev_monitor* udev_monitor,
  57                                                     const char* subsystem,
  58                                                     const char* devtype);
  59 int udev_monitor_get_fd(udev_monitor* udev_monitor);
  60 udev_monitor* udev_monitor_new_from_netlink(udev* udev, const char* name);
  61 udev_device* udev_monitor_receive_device(udev_monitor* udev_monitor);
  62 void udev_monitor_unref(udev_monitor* udev_monitor);
  63 udev* udev_new();
  64 void udev_set_log_fn(
  65     struct udev* udev,
  66     void (*log_fn)(struct udev* udev, int priority, const char* file, int line,
  67                    const char* fn, const char* format, va_list args));
  68 void udev_set_log_priority(struct udev* udev, int priority);
  69 void udev_unref(udev* udev);
  70
  71 }  // namespace device
  72
  73 #endif  // DEVICE_UDEV_LINUX_UDEV_H_