--- /dev/null
+>From d96e2bd2a2b48ede527ad7071d3e0eeda9861b73 Mon Sep 17 00:00:00 2001
+From: Robert Millan <rmh@debian.org>
+Date: Mon, 24 Feb 2014 23:22:57 +0100
+Subject: [PATCH] Add devd config backend for FreeBSD (and GNU/kFreeBSD)
+
+Based on original code by Baptiste Daroussin, with some fixes made
+by Koop Mast and myself.
+
+Signed-off-by: Robert Millan <rmh@freebsd.org>
+---
+ config/Makefile.am | 4 +
+ config/config-backends.h | 5 +
+ config/config.c | 5 +
+ config/devd.c | 387 +++++++++++++++++++++++++++++++++++++++
+ configure.ac | 16 ++
+ hw/xfree86/common/xf86Config.c | 7 +-
+ hw/xfree86/common/xf86Globals.c | 3 +-
+ include/dix-config.h.in | 3 +
+ 8 files changed, 427 insertions(+), 3 deletions(-)
+ create mode 100644 config/devd.c
+
+Index: xorg-server/config/Makefile.am
+===================================================================
+--- xorg-server.orig/config/Makefile.am
++++ xorg-server/config/Makefile.am
+@@ -40,6 +40,10 @@ if CONFIG_WSCONS
+ libconfig_la_SOURCES += wscons.c
+ endif # CONFIG_WSCONS
+
++if CONFIG_DEVD
++libconfig_la_SOURCES += devd.c
++endif
++
+ endif # CONFIG_NEED_DBUS
+
+ endif # !CONFIG_UDEV
+Index: xorg-server/config/config-backends.h
+===================================================================
+--- xorg-server.orig/config/config-backends.h
++++ xorg-server/config/config-backends.h
+@@ -75,3 +75,8 @@ void config_hal_fini(void);
+ int config_wscons_init(void);
+ void config_wscons_fini(void);
+ #endif
++
++#ifdef CONFIG_DEVD
++int config_devd_init(void);
++void config_devd_fini(void);
++#endif
+Index: xorg-server/config/config.c
+===================================================================
+--- xorg-server.orig/config/config.c
++++ xorg-server/config/config.c
+@@ -64,6 +64,9 @@ config_init(void)
+ #elif defined(CONFIG_WSCONS)
+ if (!config_wscons_init())
+ ErrorF("[config] failed to initialise wscons\n");
++#elif defined(CONFIG_DEVD)
++ if (!config_devd_init())
++ ErrorF("[config] failed to initialise devd\n");
+ #endif
+ }
+
+@@ -82,6 +85,8 @@ config_fini(void)
+ config_dbus_core_fini();
+ #elif defined(CONFIG_WSCONS)
+ config_wscons_fini();
++#elif defined(CONFIG_DEVD)
++ config_devd_fini();
+ #endif
+ }
+
+Index: xorg-server/config/devd.c
+===================================================================
+--- /dev/null
++++ xorg-server/config/devd.c
+@@ -0,0 +1,387 @@
++/*
++ * Copyright © 2012 Baptiste Daroussin
++ * Copyright © 2014 Robert Millan
++ *
++ * 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: Baptiste Daroussin <bapt@FreeBSD.org>
++ */
++
++#ifdef HAVE_DIX_CONFIG_H
++#include <dix-config.h>
++#endif
++
++#include <sys/types.h>
++#include <sys/socket.h>
++#include <sys/sysctl.h>
++#include <sys/un.h>
++
++#include <ctype.h>
++#include <errno.h>
++#include <fcntl.h>
++#include <stdlib.h>
++#include <stdio.h>
++#include <stdarg.h>
++#include <stdbool.h>
++#include <unistd.h>
++
++#include "input.h"
++#include "inputstr.h"
++#include "hotplug.h"
++#include "config-backends.h"
++#include "os.h"
++
++#define DEVD_SOCK_PATH "/var/run/devd.pipe"
++
++#define DEVD_EVENT_ADD '+'
++#define DEVD_EVENT_REMOVE '-'
++
++static int sock_devd = -1;
++
++struct hw_type {
++ const char *driver;
++ int flag;
++ const char *xdriver;
++};
++
++static struct hw_type hw_types[] = {
++ {"ukbd", ATTR_KEYBOARD, "kbd"},
++ {"atkbd", ATTR_KEYBOARD, "kbd"},
++ {"ums", ATTR_POINTER, "mouse"},
++ {"psm", ATTR_POINTER, "mouse"},
++ {"uhid", ATTR_POINTER, "mouse"},
++ {"joy", ATTR_JOYSTICK, NULL},
++ {"atp", ATTR_TOUCHPAD, NULL},
++ {"uep", ATTR_TOUCHSCREEN, NULL},
++ {NULL, -1, NULL},
++};
++
++static bool
++sysctl_exists(const char *format, ...)
++{
++ va_list args;
++ char *name = NULL;
++ size_t len;
++ int ret;
++
++ if (format == NULL)
++ return false;
++
++ va_start(args, format);
++ vasprintf(&name, format, args);
++ va_end(args);
++
++ ret = sysctlbyname(name, NULL, &len, NULL, 0);
++
++ if (ret == -1)
++ len = 0;
++
++ free(name);
++ return (len > 0);
++}
++
++static char *
++sysctl_get_str(const char *format, ...)
++{
++ va_list args;
++ char *name = NULL;
++ char *dest = NULL;
++ size_t len;
++
++ if (format == NULL)
++ return NULL;
++
++ va_start(args, format);
++ vasprintf(&name, format, args);
++ va_end(args);
++
++ if (sysctlbyname(name, NULL, &len, NULL, 0) == 0) {
++ dest = malloc(len + 1);
++ if (!dest)
++ goto unwind;
++ if (sysctlbyname(name, dest, &len, NULL, 0) == 0)
++ dest[len] = '\0';
++ else {
++ free(dest);
++ dest = NULL;
++ }
++ }
++
++ unwind:
++ free(name);
++ return dest;
++}
++
++static void
++device_added(char *devname)
++{
++ char path[PATH_MAX];
++ char *vendor;
++ char *product = NULL;
++ char *config_info = NULL;
++ char *walk;
++ InputOption *options = NULL;
++ InputAttributes attrs = { };
++ DeviceIntPtr dev = NULL;
++ int i, rc;
++ int fd;
++
++ for (i = 0; hw_types[i].driver != NULL; i++) {
++ if (strncmp(devname, hw_types[i].driver,
++ strlen(hw_types[i].driver)) == 0 &&
++ isdigit(*(devname + strlen(hw_types[i].driver)))) {
++ attrs.flags |= hw_types[i].flag;
++ break;
++ }
++ }
++ if (hw_types[i].driver == NULL) {
++ LogMessageVerb(X_INFO, 10, "config/devd: ignoring device %s\n",
++ devname);
++ return;
++ }
++ if (hw_types[i].xdriver == NULL) {
++ LogMessageVerb(X_INFO, 10, "config/devd: ignoring device %s\n",
++ devname);
++ return;
++ }
++ snprintf(path, sizeof(path), "/dev/%s", devname);
++
++ options = input_option_new(NULL, "_source", "server/devd");
++ if (!options)
++ return;
++
++ vendor =
++ sysctl_get_str("dev.%s.%s.%%desc", hw_types[i].driver,
++ devname + strlen(hw_types[i].driver));
++ if (vendor == NULL) {
++ attrs.vendor = strdup("(unnamed)");
++ attrs.product = strdup("(unnamed)");
++ }
++ else {
++ if ((walk = strchr(vendor, ' ')) != NULL) {
++ walk[0] = '\0';
++ walk++;
++ product = walk;
++ if ((walk = strchr(product, ',')) != NULL)
++ walk[0] = '\0';
++ }
++
++ attrs.vendor = strdup(vendor);
++ if (product)
++ attrs.product = strdup(product);
++ else
++ attrs.product = strdup("(unnamed)");
++
++ options = input_option_new(options, "name", xstrdup(attrs.product));
++
++ free(vendor);
++ }
++ attrs.usb_id = NULL;
++ attrs.device = strdup(path);
++ options = input_option_new(options, "driver", hw_types[i].xdriver);
++ if (attrs.flags & ATTR_KEYBOARD) {
++ /*
++ * Don't pass device option if keyboard is attached to console (open fails),
++ * thus activating special logic in xf86-input-keyboard.
++ */
++ fd = open(path, O_RDONLY | O_NONBLOCK | O_EXCL);
++ if (fd > 0) {
++ close(fd);
++ options = input_option_new(options, "device", xstrdup(path));
++ }
++ }
++ else {
++ options = input_option_new(options, "device", xstrdup(path));
++ }
++
++ if (asprintf(&config_info, "devd:%s", devname) == -1) {
++ config_info = NULL;
++ goto unwind;
++ }
++
++ if (device_is_duplicate(config_info)) {
++ LogMessage(X_WARNING, "config/devd: device %s already added. "
++ "Ignoring.\n", attrs.product);
++ goto unwind;
++ }
++
++ options = input_option_new(options, "config_info", config_info);
++ LogMessage(X_INFO, "config/devd: adding input device %s (%s)\n",
++ attrs.product, path);
++
++ rc = NewInputDeviceRequest(options, &attrs, &dev);
++
++ if (rc != Success)
++ goto unwind;
++
++ unwind:
++ free(config_info);
++ input_option_free_list(&options);
++
++ free(attrs.usb_id);
++ free(attrs.product);
++ free(attrs.device);
++ free(attrs.vendor);
++}
++
++static void
++device_removed(char *devname)
++{
++ char *value;
++
++ if (asprintf(&value, "devd:%s", devname) == -1)
++ return;
++
++ remove_devices("devd", value);
++
++ free(value);
++}
++
++static ssize_t
++socket_getline(int fd, char **out)
++{
++ char *buf, *newbuf;
++ ssize_t ret, cap, sz = 0;
++ char c;
++
++ cap = 1024;
++ buf = malloc(cap * sizeof(char));
++ if (!buf)
++ return -1;
++
++ for (;;) {
++ ret = read(sock_devd, &c, 1);
++ if (ret < 1) {
++ if (errno == EINTR)
++ continue;
++ free(buf);
++ return -1;
++ }
++
++ if (c == '\n')
++ break;
++
++ if (sz + 1 >= cap) {
++ cap *= 2;
++ newbuf = realloc(buf, cap * sizeof(char));
++ if (!newbuf) {
++ free(buf);
++ return -1;
++ }
++ buf = newbuf;
++ }
++ buf[sz] = c;
++ sz++;
++ }
++
++ buf[sz] = '\0';
++ if (sz >= 0)
++ *out = buf;
++ else
++ free(buf);
++
++ return sz; /* number of bytes in the line, not counting the line break */
++}
++
++static void
++wakeup_handler(void *data, int err, void *read_mask)
++{
++ char *line = NULL;
++ char *walk;
++
++ if (err < 0)
++ return;
++
++ if (FD_ISSET(sock_devd, (fd_set *) read_mask)) {
++ if (socket_getline(sock_devd, &line) < 0)
++ return;
++
++ walk = strchr(line + 1, ' ');
++ if (walk != NULL)
++ walk[0] = '\0';
++
++ switch (*line) {
++ case DEVD_EVENT_ADD:
++ device_added(line + 1);
++ break;
++ case DEVD_EVENT_REMOVE:
++ device_removed(line + 1);
++ break;
++ default:
++ break;
++ }
++ free(line);
++ }
++}
++
++static void
++block_handler(void *data, struct timeval **tv, void *read_mask)
++{
++}
++
++int
++config_devd_init(void)
++{
++ struct sockaddr_un devd;
++ char devicename[1024];
++ int i, j;
++
++ /* first scan the sysctl to determine the hardware if needed */
++
++ for (i = 0; hw_types[i].driver != NULL; i++) {
++ for (j = 0; sysctl_exists("dev.%s.%i.%%desc", hw_types[i].driver, j);
++ j++) {
++ snprintf(devicename, sizeof(devicename), "%s%i", hw_types[i].driver,
++ j);
++ device_added(devicename);
++ }
++
++ }
++ sock_devd = socket(AF_UNIX, SOCK_STREAM, 0);
++ if (sock_devd < 0) {
++ ErrorF("config/devd: Fail opening stream socket");
++ return 0;
++ }
++
++ devd.sun_family = AF_UNIX;
++ strlcpy(devd.sun_path, DEVD_SOCK_PATH, sizeof(devd.sun_path));
++
++ if (connect(sock_devd, (struct sockaddr *) &devd, sizeof(devd)) < 0) {
++ close(sock_devd);
++ ErrorF("config/devd: Fail to connect to devd");
++ return 0;
++ }
++
++ RegisterBlockAndWakeupHandlers(block_handler, wakeup_handler, NULL);
++ AddGeneralSocket(sock_devd);
++
++ return 1;
++}
++
++void
++config_devd_fini(void)
++{
++ if (sock_devd < 0)
++ return;
++
++ RemoveGeneralSocket(sock_devd);
++ RemoveBlockAndWakeupHandlers(block_handler, wakeup_handler, NULL);
++ close(sock_devd);
++}
+Index: xorg-server/configure.ac
+===================================================================
+--- xorg-server.orig/configure.ac
++++ xorg-server/configure.ac
+@@ -618,6 +618,7 @@ AC_ARG_ENABLE(config-udev, AS_HELP_ST
+ AC_ARG_ENABLE(config-udev-kms, AS_HELP_STRING([--enable-config-udev-kms], [Build udev kms support (default: auto)]), [CONFIG_UDEV_KMS=$enableval], [CONFIG_UDEV_KMS=auto])
+ AC_ARG_ENABLE(config-dbus, AS_HELP_STRING([--enable-config-dbus], [Build D-BUS API support (default: no)]), [CONFIG_DBUS_API=$enableval], [CONFIG_DBUS_API=no])
+ AC_ARG_ENABLE(config-hal, AS_HELP_STRING([--disable-config-hal], [Build HAL support (default: auto)]), [CONFIG_HAL=$enableval], [CONFIG_HAL=auto])
++AC_ARG_ENABLE(config-devd, AS_HELP_STRING([--disable-config-devd], [Build devd support (default: auto)]), [CONFIG_DEVD=$enableval], [CONFIG_DEVD=auto])
+ AC_ARG_ENABLE(config-wscons, AS_HELP_STRING([--enable-config-wscons], [Build wscons config support (default: auto)]), [CONFIG_WSCONS=$enableval], [CONFIG_WSCONS=auto])
+ AC_ARG_ENABLE(xfree86-utils, AS_HELP_STRING([--enable-xfree86-utils], [Build xfree86 DDX utilities (default: enabled)]), [XF86UTILS=$enableval], [XF86UTILS=yes])
+ AC_ARG_ENABLE(vgahw, AS_HELP_STRING([--enable-vgahw], [Build Xorg with vga access (default: enabled)]), [VGAHW=$enableval], [VGAHW=yes])
+@@ -922,6 +923,21 @@ if test "x$CONFIG_WSCONS" = xyes; then
+ AC_DEFINE(CONFIG_WSCONS, 1, [Use wscons for input auto configuration])
+ fi
+
++if test "x$CONFIG_DEVD" = xauto; then
++ case $host_os in
++ freebsd* | kfreebsd*-gnu)
++ CONFIG_DEVD=yes;
++ ;;
++ *)
++ CONFIG_DEVD=no;
++ ;;
++ esac
++fi
++AM_CONDITIONAL(CONFIG_DEVD, [test "x$CONFIG_DEVD" = xyes])
++if test "x$CONFIG_DEVD" = xyes; then
++ AC_DEFINE(CONFIG_DEVD, 1, [Use devd for input auto configuration])
++fi
++
+ if test "x$USE_SIGIO_BY_DEFAULT" = xyes; then
+ USE_SIGIO_BY_DEFAULT_VALUE=TRUE
+ else
+Index: xorg-server/hw/xfree86/common/xf86Config.c
+===================================================================
+--- xorg-server.orig/hw/xfree86/common/xf86Config.c
++++ xorg-server/hw/xfree86/common/xf86Config.c
+@@ -1377,15 +1377,18 @@ checkCoreInputDevices(serverLayoutPtr se
+ }
+
+ if (!xf86Info.forceInputDevices && !(foundPointer && foundKeyboard)) {
+-#if defined(CONFIG_HAL) || defined(CONFIG_UDEV) || defined(CONFIG_WSCONS)
++#if defined(CONFIG_HAL) || defined(CONFIG_UDEV) || defined(CONFIG_WSCONS) || \
++ defined(CONFIG_DEVD)
+ const char *config_backend;
+
+ #if defined(CONFIG_HAL)
+ config_backend = "HAL";
+ #elif defined(CONFIG_UDEV)
+ config_backend = "udev";
+-#else
++#elif defined(CONFIG_WSCONS)
+ config_backend = "wscons";
++#elif defined(CONFIG_DEVD)
++ config_backend = "devd";
+ #endif
+ xf86Msg(X_INFO, "The server relies on %s to provide the list of "
+ "input devices.\n\tIf no devices become available, "
+Index: xorg-server/hw/xfree86/common/xf86Globals.c
+===================================================================
+--- xorg-server.orig/hw/xfree86/common/xf86Globals.c
++++ xorg-server/hw/xfree86/common/xf86Globals.c
+@@ -123,7 +123,8 @@ xf86InfoRec xf86Info = {
+ .log = LogNone,
+ .disableRandR = FALSE,
+ .randRFrom = X_DEFAULT,
+-#if defined(CONFIG_HAL) || defined(CONFIG_UDEV) || defined(CONFIG_WSCONS)
++#if defined(CONFIG_HAL) || defined(CONFIG_UDEV) || defined(CONFIG_WSCONS) || \
++ defined(CONFIG_DEVD)
+ .forceInputDevices = FALSE,
+ .autoAddDevices = TRUE,
+ .autoEnableDevices = TRUE,
+Index: xorg-server/include/dix-config.h.in
+===================================================================
+--- xorg-server.orig/include/dix-config.h.in
++++ xorg-server/include/dix-config.h.in
+@@ -420,6 +420,9 @@
+ /* Support HAL for hotplug */
+ #undef CONFIG_HAL
+
++/* Support devd for hotplug */
++#undef CONFIG_DEVD
++
+ /* Have a monotonic clock from clock_gettime() */
+ #undef MONOTONIC_CLOCK
+
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