diff options
-rw-r--r-- | config/Makefile.am | 20 | ||||
-rw-r--r-- | config/config-backends.h | 21 | ||||
-rw-r--r-- | config/config.c | 77 | ||||
-rw-r--r-- | config/hal.c | 63 | ||||
-rw-r--r-- | config/udev.c | 260 | ||||
-rw-r--r-- | configure.ac | 23 | ||||
-rw-r--r-- | hw/kdrive/src/kinput.c | 8 | ||||
-rw-r--r-- | hw/xfree86/common/xf86Config.c | 15 | ||||
-rw-r--r-- | hw/xfree86/common/xf86Globals.c | 2 | ||||
-rw-r--r-- | hw/xfree86/common/xf86Xinput.c | 4 | ||||
-rw-r--r-- | include/dix-config.h.in | 3 |
11 files changed, 415 insertions, 81 deletions
diff --git a/config/Makefile.am b/config/Makefile.am index 7fa2df877..27f251b3a 100644 --- a/config/Makefile.am +++ b/config/Makefile.am @@ -1,12 +1,20 @@ -AM_CFLAGS = @DIX_CFLAGS@ +AM_CFLAGS = $(DIX_CFLAGS) noinst_LTLIBRARIES = libconfig.la libconfig_la_SOURCES = config.c config-backends.h +if CONFIG_UDEV + +AM_CFLAGS += $(UDEV_CFLAGS) +libconfig_la_SOURCES += udev.c +libconfig_la_LIBADD = $(UDEV_LIBS) + +else + if CONFIG_NEED_DBUS -AM_CFLAGS += @DBUS_CFLAGS@ +AM_CFLAGS += $(DBUS_CFLAGS) libconfig_la_SOURCES += dbus-core.c -endif +libconfig_la_LIBADD = $(DBUS_LIBS) if CONFIG_DBUS_API dbusconfigdir = $(sysconfdir)/dbus-1/system.d @@ -16,7 +24,13 @@ libconfig_la_SOURCES += dbus.c endif if CONFIG_HAL +AM_CFLAGS += $(HAL_CFLAGS) libconfig_la_SOURCES += hal.c +libconfig_la_LIBADD += $(HAL_LIBS) endif +endif # CONFIG_NEED_DBUS + +endif # !CONFIG_UDEV + EXTRA_DIST = xorg-server.conf x11-input.fdi diff --git a/config/config-backends.h b/config/config-backends.h index 907e86b9c..0a2a22af0 100644 --- a/config/config-backends.h +++ b/config/config-backends.h @@ -26,8 +26,18 @@ #ifdef HAVE_DIX_CONFIG_H #include <dix-config.h> #endif +#include "input.h" -#ifdef CONFIG_NEED_DBUS +void remove_devices(const char *backend, const char *config_info); +BOOL device_is_duplicate(const char *config_info); +void add_option(InputOption **options, const char *key, const char *value); + +#ifdef CONFIG_UDEV +int config_udev_init(void); +void config_udev_fini(void); +#else + +# ifdef CONFIG_NEED_DBUS #include <dbus/dbus.h> typedef void (*config_dbus_core_connect_hook)(DBusConnection *connection, @@ -46,14 +56,15 @@ int config_dbus_core_init(void); void config_dbus_core_fini(void); int config_dbus_core_add_hook(struct config_dbus_core_hook *hook); void config_dbus_core_remove_hook(struct config_dbus_core_hook *hook); -#endif +# endif -#ifdef CONFIG_DBUS_API +# ifdef CONFIG_DBUS_API int config_dbus_init(void); void config_dbus_fini(void); -#endif +# endif -#ifdef CONFIG_HAL +# ifdef CONFIG_HAL int config_hal_init(void); void config_hal_fini(void); +# endif #endif diff --git a/config/config.c b/config/config.c index b01329339..7bf5e4179 100644 --- a/config/config.c +++ b/config/config.c @@ -28,13 +28,17 @@ #endif #include "os.h" +#include "inputstr.h" #include "hotplug.h" #include "config-backends.h" void config_init(void) { -#if defined(CONFIG_DBUS_API) || defined(CONFIG_HAL) +#ifdef CONFIG_UDEV + if (!config_udev_init()) + ErrorF("[config] failed to initialise udev\n"); +#elif defined(CONFIG_NEED_DBUS) if (config_dbus_core_init()) { # ifdef CONFIG_DBUS_API if (!config_dbus_init()) @@ -54,7 +58,9 @@ config_init(void) void config_fini(void) { -#if defined(CONFIG_DBUS_API) || defined(CONFIG_HAL) +#if defined(CONFIG_UDEV) + config_udev_fini(); +#elif defined(CONFIG_NEED_DBUS) # ifdef CONFIG_HAL config_hal_fini(); # endif @@ -64,3 +70,70 @@ config_fini(void) config_dbus_core_fini(); #endif } + +static void +remove_device(const char *backend, DeviceIntPtr dev) +{ + /* this only gets called for devices that have already been added */ + LogMessage(X_INFO, "config/%s: removing device %s\n", backend, dev->name); + + /* Call PIE here so we don't try to dereference a device that's + * already been removed. */ + OsBlockSignals(); + ProcessInputEvents(); + DeleteInputDeviceRequest(dev); + OsReleaseSignals(); +} + +void +remove_devices(const char *backend, const char *config_info) +{ + DeviceIntPtr dev, next; + + for (dev = inputInfo.devices; dev; dev = next) { + next = dev->next; + if (dev->config_info && strcmp(dev->config_info, config_info) == 0) + remove_device(backend, dev); + } + for (dev = inputInfo.off_devices; dev; dev = next) { + next = dev->next; + if (dev->config_info && strcmp(dev->config_info, config_info) == 0) + remove_device(backend, dev); + } +} + +BOOL +device_is_duplicate(const char *config_info) +{ + DeviceIntPtr dev; + + for (dev = inputInfo.devices; dev; dev = dev->next) + { + if (dev->config_info && (strcmp(dev->config_info, config_info) == 0)) + return TRUE; + } + + for (dev = inputInfo.off_devices; dev; dev = dev->next) + { + if (dev->config_info && (strcmp(dev->config_info, config_info) == 0)) + return TRUE; + } + + return FALSE; +} + +void +add_option(InputOption **options, const char *key, const char *value) +{ + if (!value || *value == '\0') + return; + + for (; *options; options = &(*options)->next) + ; + *options = xcalloc(sizeof(**options), 1); + if (!*options) /* Yeesh. */ + return; + (*options)->key = xstrdup(key); + (*options)->value = xstrdup(value); + (*options)->next = NULL; +} diff --git a/config/hal.c b/config/hal.c index 6bebbdf34..1b01eccaa 100644 --- a/config/hal.c +++ b/config/hal.c @@ -58,25 +58,9 @@ struct xkb_options { char* options; }; - -static void -remove_device(DeviceIntPtr dev) -{ - /* this only gets called for devices that have already been added */ - LogMessage(X_INFO, "config/hal: removing device %s\n", dev->name); - - /* Call PIE here so we don't try to dereference a device that's - * already been removed. */ - OsBlockSignals(); - ProcessInputEvents(); - DeleteInputDeviceRequest(dev); - OsReleaseSignals(); -} - static void device_removed(LibHalContext *ctx, const char *udi) { - DeviceIntPtr dev, next; char *value; value = xalloc(strlen(udi) + 5); /* "hal:" + NULL */ @@ -84,36 +68,11 @@ device_removed(LibHalContext *ctx, const char *udi) return; sprintf(value, "hal:%s", udi); - for (dev = inputInfo.devices; dev; dev = next) { - next = dev->next; - if (dev->config_info && strcmp(dev->config_info, value) == 0) - remove_device(dev); - } - for (dev = inputInfo.off_devices; dev; dev = next) { - next = dev->next; - if (dev->config_info && strcmp(dev->config_info, value) == 0) - remove_device(dev); - } + remove_devices("hal", value); xfree(value); } -static void -add_option(InputOption **options, const char *key, const char *value) -{ - if (!value || *value == '\0') - return; - - for (; *options; options = &(*options)->next) - ; - *options = xcalloc(sizeof(**options), 1); - if (!*options) /* Yeesh. */ - return; - (*options)->key = xstrdup(key); - (*options)->value = xstrdup(value); - (*options)->next = NULL; -} - static char * get_prop_string(LibHalContext *hal_ctx, const char *udi, const char *name) { @@ -166,26 +125,6 @@ get_prop_string_array(LibHalContext *hal_ctx, const char *udi, const char *prop) return ret; } -static BOOL -device_is_duplicate(char *config_info) -{ - DeviceIntPtr dev; - - for (dev = inputInfo.devices; dev; dev = dev->next) - { - if (dev->config_info && (strcmp(dev->config_info, config_info) == 0)) - return TRUE; - } - - for (dev = inputInfo.off_devices; dev; dev = dev->next) - { - if (dev->config_info && (strcmp(dev->config_info, config_info) == 0)) - return TRUE; - } - - return FALSE; -} - static void device_added(LibHalContext *hal_ctx, const char *udi) { diff --git a/config/udev.c b/config/udev.c new file mode 100644 index 000000000..3ef0d7fb3 --- /dev/null +++ b/config/udev.c @@ -0,0 +1,260 @@ +/* + * Copyright © 2009 Julien Cristau + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + * + * Author: Julien Cristau <jcristau@debian.org> + */ + +#ifdef HAVE_DIX_CONFIG_H +#include <dix-config.h> +#endif + +#include <libudev.h> + +#include "input.h" +#include "inputstr.h" +#include "hotplug.h" +#include "config-backends.h" +#include "os.h" + +#define UDEV_XKB_PROP_KEY "xkb" + +static struct udev_monitor *udev_monitor; + +static void +device_added(struct udev_device *udev_device) +{ + const char *path, *name = NULL; + char *config_info = NULL; + const char *syspath; + const char *key, *value, *tmp; + InputOption *options = NULL, *tmpo; + InputAttributes attrs = {}; + DeviceIntPtr dev = NULL; + struct udev_list_entry *set, *entry; + struct udev_device *parent; + int rc; + + path = udev_device_get_devnode(udev_device); + + syspath = udev_device_get_syspath(udev_device); + + if (!path || !syspath) + return; + + if (!udev_device_get_property_value(udev_device, "ID_INPUT")) + return; + + options = xcalloc(sizeof(*options), 1); + if (!options) + return; + + options->key = xstrdup("_source"); + options->value = xstrdup("server/udev"); + if (!options->key || !options->value) + goto unwind; + + parent = udev_device_get_parent(udev_device); + if (parent) + name = udev_device_get_property_value(parent, "NAME"); + if (!name) + name = "(unnamed)"; + else + attrs.product = name; + add_option(&options, "name", name); + + add_option(&options, "path", path); + add_option(&options, "device", path); + attrs.device = path; + + config_info = Xprintf("udev:%s", syspath); + if (!config_info) + goto unwind; + + if (device_is_duplicate(config_info)) { + LogMessage(X_WARNING, "config/udev: device %s already added. " + "Ignoring.\n", name); + goto unwind; + } + + set = udev_device_get_properties_list_entry(udev_device); + udev_list_entry_foreach(entry, set) { + key = udev_list_entry_get_name(entry); + if (!key) + continue; + value = udev_list_entry_get_value(entry); + if (!strncasecmp(key, UDEV_XKB_PROP_KEY, + sizeof(UDEV_XKB_PROP_KEY) - 1)) { + tmp = key + sizeof(UDEV_XKB_PROP_KEY) - 1; + if (!strcasecmp(tmp, "rules")) + add_option(&options, "xkb_rules", value); + else if (!strcasecmp(tmp, "layout")) + add_option(&options, "xkb_layout", value); + else if (!strcasecmp(tmp, "variant")) + add_option(&options, "xkb_variant", value); + else if (!strcasecmp(tmp, "model")) + add_option(&options, "xkb_model", value); + else if (!strcasecmp(tmp, "options")) + add_option(&options, "xkb_options", value); + } else if (!strcmp(key, "ID_VENDOR")) { + attrs.vendor = value; + } else if (!strcmp(key, "ID_INPUT_KEY")) { + attrs.flags |= ATTR_KEYBOARD; + } else if (!strcmp(key, "ID_INPUT_MOUSE")) { + attrs.flags |= ATTR_POINTER; + } else if (!strcmp(key, "ID_INPUT_JOYSTICK")) { + attrs.flags |= ATTR_JOYSTICK; + } else if (!strcmp(key, "ID_INPUT_TABLET")) { + attrs.flags |= ATTR_TABLET; + } else if (!strcmp(key, "ID_INPUT_TOUCHPAD")) { + attrs.flags |= ATTR_TOUCHPAD; + } else if (!strcmp(key, "ID_INPUT_TOUCHSCREEN")) { + attrs.flags |= ATTR_TOUCHSCREEN; + } + } + LogMessage(X_INFO, "config/udev: Adding input device %s (%s)\n", + name, path); + rc = NewInputDeviceRequest(options, &attrs, &dev); + if (rc != Success) + goto unwind; + + for (; dev; dev = dev->next) { + xfree(dev->config_info); + dev->config_info = xstrdup(config_info); + } + + unwind: + xfree(config_info); + while (!dev && (tmpo = options)) { + options = tmpo->next; + xfree(tmpo->key); + xfree(tmpo->value); + xfree(tmpo); + } + + return; +} + +static void +device_removed(struct udev_device *device) +{ + char *value; + const char *syspath = udev_device_get_syspath(device); + + value = Xprintf("udev:%s", syspath); + if (!value) + return; + + remove_devices("udev", value); + + xfree(value); +} + +static void +wakeup_handler(pointer data, int err, pointer read_mask) +{ + int udev_fd = udev_monitor_get_fd(udev_monitor); + struct udev_device *udev_device; + const char *action; + + if (err < 0) + return; + + if (FD_ISSET(udev_fd, (fd_set *)read_mask)) { + udev_device = udev_monitor_receive_device(udev_monitor); + if (!udev_device) + return; + action = udev_device_get_action(udev_device); + if (action) { + if (!strcmp(action, "add")) + device_added(udev_device); + else if (!strcmp(action, "remove")) + device_removed(udev_device); + } + udev_device_unref(udev_device); + } +} + +static void +block_handler(pointer data, struct timeval **tv, pointer read_mask) +{ +} + +int +config_udev_init(void) +{ + struct udev *udev; + struct udev_enumerate *enumerate; + struct udev_list_entry *devices, *device; + int rc; + + udev = udev_new(); + if (!udev) + return 0; + udev_monitor = udev_monitor_new_from_netlink(udev, "udev"); + if (!udev_monitor) + return 0; + rc = udev_monitor_filter_add_match_subsystem_devtype(udev_monitor, + "input", NULL); + if (rc < 0) + return 0; + + if (udev_monitor_enable_receiving(udev_monitor)) { + ErrorF("config/udev: failed to bind the udev monitor\n"); + return 0; + } + + enumerate = udev_enumerate_new(udev); + if (!enumerate) + return 0; + udev_enumerate_add_match_subsystem(enumerate, "input"); + udev_enumerate_scan_devices(enumerate); + devices = udev_enumerate_get_list_entry(enumerate); + udev_list_entry_foreach(device, devices) { + const char *syspath = udev_list_entry_get_name(device); + struct udev_device *udev_device = udev_device_new_from_syspath(udev, syspath); + device_added(udev_device); + udev_device_unref(udev_device); + } + udev_enumerate_unref(enumerate); + + RegisterBlockAndWakeupHandlers(block_handler, wakeup_handler, NULL); + AddGeneralSocket(udev_monitor_get_fd(udev_monitor)); + + return 1; +} + +void +config_udev_fini(void) +{ + struct udev *udev; + + if (!udev_monitor) + return; + + udev = udev_monitor_get_udev(udev_monitor); + + RemoveGeneralSocket(udev_monitor_get_fd(udev_monitor)); + RemoveBlockAndWakeupHandlers(block_handler, wakeup_handler, udev_monitor); + udev_monitor_unref(udev_monitor); + udev_monitor = NULL; + udev_unref(udev); +} diff --git a/configure.ac b/configure.ac index e5eb380bc..7e2c6a51e 100644 --- a/configure.ac +++ b/configure.ac @@ -618,6 +618,7 @@ AC_ARG_ENABLE(multibuffer, AS_HELP_STRING([--enable-multibuffer], [Build Mult AC_ARG_ENABLE(dbe, AS_HELP_STRING([--disable-dbe], [Build DBE extension (default: enabled)]), [DBE=$enableval], [DBE=yes]) AC_ARG_ENABLE(xf86bigfont, AS_HELP_STRING([--disable-xf86bigfont], [Build XF86 Big Font extension (default: disabled)]), [XF86BIGFONT=$enableval], [XF86BIGFONT=no]) AC_ARG_ENABLE(dpms, AS_HELP_STRING([--disable-dpms], [Build DPMS extension (default: enabled)]), [DPMSExtension=$enableval], [DPMSExtension=yes]) +AC_ARG_ENABLE(config-udev, AS_HELP_STRING([--enable-config-udev], [Build udev support (default: no)]), [CONFIG_UDEV=$enableval], [CONFIG_UDEV=no]) AC_ARG_ENABLE(config-dbus, AS_HELP_STRING([--enable-config-dbus], [Build D-BUS API support (default: no)]), [CONFIG_DBUS_API=$enableval], [CONFIG_DBUS_API=no]) AC_ARG_ENABLE(config-hal, AS_HELP_STRING([--disable-config-hal], [Build HAL support (default: auto)]), [CONFIG_HAL=$enableval], [CONFIG_HAL=auto]) AC_ARG_ENABLE(xfree86-utils, AS_HELP_STRING([--enable-xfree86-utils], [Build xfree86 DDX utilities (default: enabled)]), [XF86UTILS=$enableval], [XF86UTILS=yes]) @@ -775,6 +776,26 @@ LIBXI="xi >= 1.2.99.1" LIBXTST="xtst >= 1.0.99.2" LIBPCIACCESS="pciaccess >= 0.8.0" LIBGLIB="glib-2.0 >= 2.16" +LIBUDEV="libudev >= 143" + +if test "x$CONFIG_UDEV" = xyes && + { test "x$CONFIG_DBUS_API" = xyes || test "x$CONFIG_HAL" = xyes; }; then + AC_MSG_ERROR([Hotplugging through both libudev and dbus/hal not allowed]) +fi + +PKG_CHECK_MODULES(UDEV, $LIBUDEV, [HAVE_LIBUDEV=yes], [HAVE_LIBUDEV=no]) +if test "x$CONFIG_UDEV" = xauto; then + CONFIG_UDEV="$HAVE_LIBUDEV" +fi +AM_CONDITIONAL(CONFIG_UDEV, [test "x$CONFIG_UDEV" = xyes]) +if test "x$CONFIG_UDEV" = xyes; then + CONFIG_DBUS_API=no + CONFIG_HAL=no + if ! test "x$HAVE_LIBUDEV" = xyes; then + AC_MSG_ERROR([udev configuration API requested, but libudev is not installed]) + fi + AC_DEFINE(CONFIG_UDEV, 1, [Use libudev for input hotplug]) +fi dnl HAVE_DBUS is true if we actually have the D-Bus library, whereas dnl CONFIG_DBUS_API is true if we want to enable the D-Bus config @@ -808,13 +829,11 @@ if test "x$CONFIG_HAL" = xyes; then fi AC_DEFINE(CONFIG_HAL, 1, [Use the HAL hotplug API]) - REQUIRED_LIBS="$REQUIRED_LIBS hal" CONFIG_NEED_DBUS="yes" fi AM_CONDITIONAL(CONFIG_HAL, [test "x$CONFIG_HAL" = xyes]) if test "x$CONFIG_NEED_DBUS" = xyes; then - REQUIRED_LIBS="$REQUIRED_LIBS dbus-1" AC_DEFINE(CONFIG_NEED_DBUS, 1, [Use D-Bus for input hotplug]) fi AM_CONDITIONAL(CONFIG_NEED_DBUS, [test "x$CONFIG_NEED_DBUS" = xyes]) diff --git a/hw/kdrive/src/kinput.c b/hw/kdrive/src/kinput.c index c08459112..09b5d3bd4 100644 --- a/hw/kdrive/src/kinput.c +++ b/hw/kdrive/src/kinput.c @@ -2281,6 +2281,14 @@ NewInputDeviceRequest(InputOption *options, InputAttributes *attrs, return BadValue; } #endif +#ifdef CONFIG_UDEV + else if (strcmp(option->key, "_source") == 0 && + strcmp(option->value, "server/udev") == 0) + { + ErrorF("Ignoring device from udev.\n"); + return BadValue; + } +#endif } if (!ki && !pi) { diff --git a/hw/xfree86/common/xf86Config.c b/hw/xfree86/common/xf86Config.c index 56ab2ee46..1abc182da 100644 --- a/hw/xfree86/common/xf86Config.c +++ b/hw/xfree86/common/xf86Config.c @@ -1461,12 +1461,19 @@ checkCoreInputDevices(serverLayoutPtr servlayoutp, Bool implicitLayout) } if (xf86Info.allowEmptyInput && !(foundPointer && foundKeyboard)) { -#ifdef CONFIG_HAL - xf86Msg(X_INFO, "The server relies on HAL to provide the list of " +#if defined(CONFIG_HAL) || defined(CONFIG_UDEV) + const char *config_backend; +#if defined(CONFIG_HAL) + config_backend = "HAL"; +#else + config_backend = "udev"; +#endif + xf86Msg(X_INFO, "The server relies on %s to provide the list of " "input devices.\n\tIf no devices become available, " - "reconfigure HAL or disable AutoAddDevices.\n"); + "reconfigure %s or disable AutoAddDevices.\n", + config_backend, config_backend); #else - xf86Msg(X_INFO, "HAL is disabled and no input devices were configured.\n" + xf86Msg(X_INFO, "Hotplugging is disabled and no input devices were configured.\n" "\tTry disabling AllowEmptyInput.\n"); #endif } diff --git a/hw/xfree86/common/xf86Globals.c b/hw/xfree86/common/xf86Globals.c index 317b78a3a..8b483f35c 100644 --- a/hw/xfree86/common/xf86Globals.c +++ b/hw/xfree86/common/xf86Globals.c @@ -132,7 +132,7 @@ xf86InfoRec xf86Info = { .kbdCustomKeycodes = FALSE, .disableRandR = FALSE, .randRFrom = X_DEFAULT, -#ifdef CONFIG_HAL +#if defined(CONFIG_HAL) || defined(CONFIG_UDEV) .allowEmptyInput = TRUE, .autoAddDevices = TRUE, .autoEnableDevices = TRUE diff --git a/hw/xfree86/common/xf86Xinput.c b/hw/xfree86/common/xf86Xinput.c index 87b5100fa..57db056d8 100644 --- a/hw/xfree86/common/xf86Xinput.c +++ b/hw/xfree86/common/xf86Xinput.c @@ -692,9 +692,9 @@ NewInputDeviceRequest (InputOption *options, InputAttributes *attrs, } } - /* Right now, the only automatic config we know of is HAL. */ if (strcmp(option->key, "_source") == 0 && - strcmp(option->value, "server/hal") == 0) { + (strcmp(option->value, "server/hal") == 0 || + strcmp(option->value, "server/udev") == 0)) { is_auto = 1; if (!xf86Info.autoAddDevices) { rval = BadMatch; diff --git a/include/dix-config.h.in b/include/dix-config.h.in index ab04414f1..84c78db54 100644 --- a/include/dix-config.h.in +++ b/include/dix-config.h.in @@ -399,6 +399,9 @@ /* Support D-Bus */ #undef HAVE_DBUS +/* Use libudev for input hotplug */ +#undef CONFIG_UDEV + /* Use D-Bus for input hotplug */ #undef CONFIG_NEED_DBUS |