mirror of
https://gitlab.freedesktop.org/upower/upower.git
synced 2025-12-20 06:40:04 +01:00
up-device-kbd-backlight: The parent class for keyboard backlight control
This parent class can be used for multiple implementations, such as freebsd and Linux. The child class inherits it to register the device to upower and access the dbus services.
This commit is contained in:
Kate Hsuan
parent
0dcb46475f
commit
aaf52de8dc
3 changed files with 472 additions and 0 deletions
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@ -40,6 +40,8 @@ upowerd_private = static_library('upowerd-private',
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'up-enumerator.h',
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'up-enumerator.h',
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'up-kbd-backlight.h',
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'up-kbd-backlight.h',
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'up-kbd-backlight.c',
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'up-kbd-backlight.c',
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'up-device-kbd-backlight.c',
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'up-device-kbd-backlight.h',
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'up-history.h',
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'up-history.h',
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'up-history.c',
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'up-history.c',
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'up-backend.h',
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'up-backend.h',
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410
src/up-device-kbd-backlight.c
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410
src/up-device-kbd-backlight.c
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@ -0,0 +1,410 @@
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
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*
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* Copyright (C) 2025 Kate Hsuan <p.hsuan@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#include "config.h"
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#include <glib.h>
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#include <glib/gstdio.h>
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#include <glib/gi18n-lib.h>
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#include <glib-object.h>
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#include "up-native.h"
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#include "up-device-kbd-backlight.h"
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#include "up-stats-item.h"
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typedef struct
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{
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UpDaemon *daemon;
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GObject *native;
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} UpDeviceKbdBacklightPrivate;
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static void up_device_kbd_backlight_initable_iface_init (GInitableIface *iface);
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G_DEFINE_TYPE_EXTENDED (UpDeviceKbdBacklight, up_device_kbd_backlight, UP_TYPE_EXPORTED_KBD_BACKLIGHT_SKELETON, 0,
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G_IMPLEMENT_INTERFACE (G_TYPE_INITABLE,
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up_device_kbd_backlight_initable_iface_init)
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G_ADD_PRIVATE (UpDeviceKbdBacklight))
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enum {
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PROP_0,
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PROP_DAEMON,
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PROP_NATIVE,
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N_PROPS
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};
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/* Upower keeps the legacy keyboard backlight DBus API (/org/freedesktop/UPower/KbdBacklight/)
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* for backward compatibility.
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* The new API path is based on the legacy one and the suffix is the name of the keyboard
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* backlight device. For example, the path of the keyboard backlight device
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* "tpacpiookbd_backlight" is
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* "/org/freedesktop/UPower/KbdBacklight/tpacpiookbd_backlight".*/
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#define UP_DEVICES_KBD_BACKLIGHT_DBUS_PATH "/org/freedesktop/UPower/KbdBacklight"
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static GParamSpec *properties[N_PROPS];
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/**
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* up_kbd_backlight_emit_change:
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**/
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void
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up_device_kbd_backlight_emit_change(UpDeviceKbdBacklight *kbd_backlight, int value, const char *source)
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{
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up_exported_kbd_backlight_emit_brightness_changed (UP_EXPORTED_KBD_BACKLIGHT (kbd_backlight), value);
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up_exported_kbd_backlight_emit_brightness_changed_with_source (UP_EXPORTED_KBD_BACKLIGHT (kbd_backlight), value, source);
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}
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/**
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* up_kbd_backlight_get_brightness:
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*
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* Gets the current brightness
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**/
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static gboolean
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up_kbd_backlight_get_brightness (UpExportedKbdBacklight *skeleton,
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GDBusMethodInvocation *invocation,
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UpDeviceKbdBacklight *kbd_backlight)
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{
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UpDeviceKbdBacklightClass *klass;
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gint brightness = 0;
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g_return_val_if_fail (UP_IS_DEVICE_KBD_BACKLIGHT (kbd_backlight), FALSE);
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klass = UP_DEVICE_KBD_BACKLIGHT_GET_CLASS (kbd_backlight);
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brightness = klass->get_brightness (kbd_backlight);
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if (brightness >= 0) {
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up_exported_kbd_backlight_complete_get_brightness (skeleton, invocation,
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brightness);
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} else {
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g_dbus_method_invocation_return_error (invocation,
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UP_DAEMON_ERROR, UP_DAEMON_ERROR_GENERAL,
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"error reading brightness");
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}
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return TRUE;
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}
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/**
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* up_kbd_backlight_get_max_brightness:
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*
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* Gets the max brightness
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**/
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static gboolean
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up_kbd_backlight_get_max_brightness (UpExportedKbdBacklight *skeleton,
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GDBusMethodInvocation *invocation,
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UpDeviceKbdBacklight *kbd_backlight)
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{
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UpDeviceKbdBacklightClass *klass;
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gint brightness = -1;
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g_return_val_if_fail (UP_IS_DEVICE_KBD_BACKLIGHT (kbd_backlight), FALSE);
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klass = UP_DEVICE_KBD_BACKLIGHT_GET_CLASS (kbd_backlight);
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if (klass->get_max_brightness != NULL)
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brightness = klass->get_max_brightness (kbd_backlight);
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if (brightness >= 0) {
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up_exported_kbd_backlight_complete_get_max_brightness (skeleton, invocation,
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brightness);
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} else {
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g_dbus_method_invocation_return_error (invocation,
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UP_DAEMON_ERROR, UP_DAEMON_ERROR_GENERAL,
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"error reading max brightness");
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}
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return TRUE;
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}
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/**
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* up_kbd_backlight_set_brightness:
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*
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* Sets the kbd backlight LED brightness.
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**/
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static gboolean
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up_kbd_backlight_set_brightness (UpExportedKbdBacklight *skeleton,
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GDBusMethodInvocation *invocation,
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gint value,
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UpDeviceKbdBacklight *kbd_backlight)
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{
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UpDeviceKbdBacklightClass *klass;
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gboolean ret = FALSE;
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g_return_val_if_fail (UP_IS_DEVICE_KBD_BACKLIGHT (kbd_backlight), FALSE);
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klass = UP_DEVICE_KBD_BACKLIGHT_GET_CLASS (kbd_backlight);
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if (klass->set_brightness == NULL) {
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g_dbus_method_invocation_return_error (invocation,
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UP_DAEMON_ERROR, UP_DAEMON_ERROR_GENERAL,
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"setting brightness is unsupported");
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return TRUE;
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}
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ret = klass->set_brightness (kbd_backlight, value);
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if (ret) {
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up_exported_kbd_backlight_complete_set_brightness (skeleton, invocation);
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up_device_kbd_backlight_emit_change (kbd_backlight, value, "external");
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} else {
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g_dbus_method_invocation_return_error (invocation,
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UP_DAEMON_ERROR, UP_DAEMON_ERROR_GENERAL,
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"error writing brightness %d", value);
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}
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return TRUE;
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}
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GObject *
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up_device_kbd_backlight_get_native (UpDeviceKbdBacklight *device)
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{
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UpDeviceKbdBacklightPrivate *priv = up_device_kbd_backlight_get_instance_private (device);
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g_return_val_if_fail (UP_IS_DEVICE_KBD_BACKLIGHT (device), NULL);
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return priv->native;
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}
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static gchar *
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up_device_kbd_backlight_compute_object_path (UpDeviceKbdBacklight *device)
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{
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UpDeviceKbdBacklightPrivate *priv = up_device_kbd_backlight_get_instance_private (device);
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g_autofree gchar *basename = NULL;
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g_autofree gchar *id = NULL;
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gchar *object_path;
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const gchar *native_path;
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guint i;
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if (priv->native == NULL) {
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return g_build_filename (UP_DEVICES_KBD_BACKLIGHT_DBUS_PATH, "KbdBacklight", NULL);
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}
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native_path = up_exported_kbd_backlight_get_native_path (UP_EXPORTED_KBD_BACKLIGHT (device));
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basename = g_path_get_basename (native_path);
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id = g_strjoin ("_", basename, NULL);
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/* make DBUS valid path */
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for (i=0; id[i] != '\0'; i++) {
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if (id[i] == '-')
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id[i] = '_';
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if (id[i] == '.')
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id[i] = 'x';
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if (id[i] == ':')
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id[i] = 'o';
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if (id[i] == '@')
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id[i] = '_';
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}
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object_path = g_build_filename (UP_DEVICES_KBD_BACKLIGHT_DBUS_PATH, id, NULL);
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return object_path;
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}
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static void
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up_device_kbd_backlight_export_skeleton (UpDeviceKbdBacklight *device,
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const gchar *object_path)
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{
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UpDeviceKbdBacklightPrivate *priv = up_device_kbd_backlight_get_instance_private (device);
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GError *error = NULL;
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g_dbus_interface_skeleton_export (G_DBUS_INTERFACE_SKELETON (device),
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g_dbus_interface_skeleton_get_connection (G_DBUS_INTERFACE_SKELETON (priv->daemon)),
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object_path,
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&error);
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if (error != NULL) {
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g_critical ("error registering device on system bus: %s", error->message);
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g_error_free (error);
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}
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}
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gboolean
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up_device_kbd_backlight_register (UpDeviceKbdBacklight *device)
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{
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g_autofree char *computed_object_path = NULL;
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if (g_dbus_interface_skeleton_get_object_path (G_DBUS_INTERFACE_SKELETON (device)) != NULL)
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return FALSE;
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computed_object_path = up_device_kbd_backlight_compute_object_path (device);
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g_debug ("Exported Keyboard backlight with path %s", computed_object_path);
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up_device_kbd_backlight_export_skeleton (device, computed_object_path);
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return TRUE;
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}
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void
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up_device_kbd_backlight_unregister (UpDeviceKbdBacklight *device)
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{
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g_autofree char *object_path = NULL;
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object_path = g_strdup (g_dbus_interface_skeleton_get_object_path (G_DBUS_INTERFACE_SKELETON (device)));
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if (object_path != NULL) {
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g_dbus_interface_skeleton_unexport (G_DBUS_INTERFACE_SKELETON (device));
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g_debug ("Unexported UpDeviceKbdBacklight with path %s", object_path);
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}
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}
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const gchar *
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up_device_kbd_backlight_get_object_path (UpDeviceKbdBacklight *device)
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{
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g_return_val_if_fail (UP_IS_DEVICE_KBD_BACKLIGHT (device), NULL);
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return g_dbus_interface_skeleton_get_object_path (G_DBUS_INTERFACE_SKELETON (device));
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}
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static void
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up_device_kbd_backlight_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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UpDeviceKbdBacklight *device = UP_DEVICE_KBD_BACKLIGHT (object);
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UpDeviceKbdBacklightPrivate *priv = up_device_kbd_backlight_get_instance_private (device);
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switch (prop_id)
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{
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case PROP_DAEMON:
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priv->daemon = g_value_dup_object (value);
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break;
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case PROP_NATIVE:
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priv->native = g_value_dup_object (value);
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if (priv->native == NULL)
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g_warning ("KBD native is NULL");
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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}
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}
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static void
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up_device_kbd_backlight_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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switch (prop_id)
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{
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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}
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}
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static gboolean
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up_device_kbd_backlight_initable_init (GInitable *initable,
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GCancellable *cancellable,
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GError **error)
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{
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UpDeviceKbdBacklight *device = UP_DEVICE_KBD_BACKLIGHT (initable);
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UpDeviceKbdBacklightPrivate *priv = up_device_kbd_backlight_get_instance_private (device);
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const gchar *native_path = NULL;
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UpDeviceKbdBacklightClass *klass = UP_DEVICE_KBD_BACKLIGHT_GET_CLASS (device);
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int ret;
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g_return_val_if_fail (UP_IS_DEVICE_KBD_BACKLIGHT (device), FALSE);
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if (priv->native) {
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native_path = up_native_get_native_path (priv->native);
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up_exported_kbd_backlight_set_native_path (UP_EXPORTED_KBD_BACKLIGHT (device), native_path);
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}
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/* coldplug source */
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if (klass->coldplug != NULL) {
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ret = klass->coldplug (device);
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if (!ret) {
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g_debug ("failed to coldplug %s", native_path);
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g_propagate_error (error, g_error_new (G_IO_ERROR, G_IO_ERROR_FAILED,
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"Failed to coldplug %s", native_path));
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return FALSE;
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}
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}
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up_device_kbd_backlight_register (device);
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return TRUE;
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}
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static void
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up_device_kbd_backlight_initable_iface_init (GInitableIface *iface)
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{
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iface->init = up_device_kbd_backlight_initable_init;
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}
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/**
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* up_kbd_backlight_init:
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**/
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static void
|
||||||
|
up_device_kbd_backlight_init (UpDeviceKbdBacklight *kbd_backlight)
|
||||||
|
{
|
||||||
|
g_signal_connect (kbd_backlight, "handle-get-brightness",
|
||||||
|
G_CALLBACK (up_kbd_backlight_get_brightness), kbd_backlight);
|
||||||
|
g_signal_connect (kbd_backlight, "handle-get-max-brightness",
|
||||||
|
G_CALLBACK (up_kbd_backlight_get_max_brightness), kbd_backlight);
|
||||||
|
g_signal_connect (kbd_backlight, "handle-set-brightness",
|
||||||
|
G_CALLBACK (up_kbd_backlight_set_brightness), kbd_backlight);
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* up_kbd_backlight_finalize:
|
||||||
|
**/
|
||||||
|
static void
|
||||||
|
up_device_kbd_backlight_finalize (GObject *object)
|
||||||
|
{
|
||||||
|
g_return_if_fail (object != NULL);
|
||||||
|
g_return_if_fail (UP_IS_DEVICE_KBD_BACKLIGHT (object));
|
||||||
|
|
||||||
|
G_OBJECT_CLASS (up_device_kbd_backlight_parent_class)->finalize (object);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
up_device_kbd_backlight_class_init (UpDeviceKbdBacklightClass *klass)
|
||||||
|
{
|
||||||
|
GObjectClass *object_class = G_OBJECT_CLASS (klass);
|
||||||
|
|
||||||
|
object_class->finalize = up_device_kbd_backlight_finalize;
|
||||||
|
|
||||||
|
object_class->set_property = up_device_kbd_backlight_set_property;
|
||||||
|
object_class->get_property = up_device_kbd_backlight_get_property;
|
||||||
|
|
||||||
|
properties[PROP_DAEMON] =
|
||||||
|
g_param_spec_object ("daemon",
|
||||||
|
"UpDaemon",
|
||||||
|
"UpDaemon reference",
|
||||||
|
UP_TYPE_DAEMON,
|
||||||
|
G_PARAM_STATIC_STRINGS | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY);
|
||||||
|
|
||||||
|
properties[PROP_NATIVE] =
|
||||||
|
g_param_spec_object ("native",
|
||||||
|
"Native",
|
||||||
|
"Native Object",
|
||||||
|
G_TYPE_OBJECT,
|
||||||
|
G_PARAM_STATIC_STRINGS | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY);
|
||||||
|
|
||||||
|
g_object_class_install_properties (object_class, N_PROPS, properties);
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* up_kbd_backlight_new:
|
||||||
|
**/
|
||||||
|
UpDeviceKbdBacklight *
|
||||||
|
up_device_kbd_backlight_new (UpDaemon *daemon, GObject *native)
|
||||||
|
{
|
||||||
|
return UP_DEVICE_KBD_BACKLIGHT (g_object_new (UP_TYPE_DEVICE_KBD_BACKLIGHT,
|
||||||
|
"daemon", daemon,
|
||||||
|
"native", native,
|
||||||
|
NULL));
|
||||||
|
}
|
||||||
60
src/up-device-kbd-backlight.h
Normal file
60
src/up-device-kbd-backlight.h
Normal file
|
|
@ -0,0 +1,60 @@
|
||||||
|
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
|
||||||
|
*
|
||||||
|
* Copyright (C) 2025 Kate Hsuan <p.hsuan@gmail.com>
|
||||||
|
*
|
||||||
|
* This program is free software; you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU General Public License as published by
|
||||||
|
* the Free Software Foundation; either version 2 of the License, or
|
||||||
|
* (at your option) any later version.
|
||||||
|
*
|
||||||
|
* This program is distributed in the hope that it will be useful,
|
||||||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
* GNU General Public License for more details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU General Public License
|
||||||
|
* along with this program; if not, write to the Free Software
|
||||||
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef __UP_DEVICE_KBD_BACKLIGHT_H__
|
||||||
|
#define __UP_DEVICE_KBD_BACKLIGHT_H__
|
||||||
|
|
||||||
|
#include <dbus/up-kbd-backlight-generated.h>
|
||||||
|
#include "up-daemon.h"
|
||||||
|
|
||||||
|
G_BEGIN_DECLS
|
||||||
|
|
||||||
|
#define UP_TYPE_DEVICE_KBD_BACKLIGHT (up_device_kbd_backlight_get_type ())
|
||||||
|
|
||||||
|
G_DECLARE_DERIVABLE_TYPE (UpDeviceKbdBacklight, up_device_kbd_backlight, UP, DEVICE_KBD_BACKLIGHT, UpExportedKbdBacklightSkeleton)
|
||||||
|
|
||||||
|
struct _UpDeviceKbdBacklightClass
|
||||||
|
{
|
||||||
|
UpExportedKbdBacklightSkeletonClass parent_class;
|
||||||
|
|
||||||
|
gboolean (*coldplug) (UpDeviceKbdBacklight *device);
|
||||||
|
|
||||||
|
gint (*get_max_brightness) (UpDeviceKbdBacklight *device);
|
||||||
|
gint (*get_brightness) (UpDeviceKbdBacklight *device);
|
||||||
|
gboolean (*set_brightness) (UpDeviceKbdBacklight *device, gint brightness);
|
||||||
|
|
||||||
|
};
|
||||||
|
|
||||||
|
|
||||||
|
GType up_device_kbd_backlight_get_type (void);
|
||||||
|
|
||||||
|
void up_device_kbd_backlight_emit_change (UpDeviceKbdBacklight *kbd_backlight,
|
||||||
|
int value,
|
||||||
|
const char *source);
|
||||||
|
const gchar *up_device_kbd_backlight_get_object_path (UpDeviceKbdBacklight *device);
|
||||||
|
GObject *up_device_kbd_backlight_get_native (UpDeviceKbdBacklight *device);
|
||||||
|
UpDeviceKbdBacklight *up_device_kbd_backlight_new (UpDaemon *daemon,
|
||||||
|
GObject *native);
|
||||||
|
gboolean up_device_kbd_backlight_register (UpDeviceKbdBacklight *device);
|
||||||
|
void up_device_kbd_backlight_unregister (UpDeviceKbdBacklight *device);
|
||||||
|
|
||||||
|
G_END_DECLS
|
||||||
|
|
||||||
|
#endif /* __UP_DEVICE_KBD_BACKLIGHT_H__ */
|
||||||
Loading…
Add table
Reference in a new issue