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+/* $Xorg: XOpenDev.c,v 1.4 2001/02/09 02:03:51 xorgcvs Exp $ */
+
+/************************************************************
+
+Copyright 1989, 1998 The Open Group
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+The above copyright notice and this permission notice 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
+OPEN GROUP 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.
+
+Except as contained in this notice, the name of The Open Group shall not be
+used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from The Open Group.
+
+Copyright 1989 by Hewlett-Packard Company, Palo Alto, California.
+
+ All Rights Reserved
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose and without fee is hereby granted,
+provided that the above copyright notice appear in all copies and that
+both that copyright notice and this permission notice appear in
+supporting documentation, and that the name of Hewlett-Packard not be
+used in advertising or publicity pertaining to distribution of the
+software without specific, written prior permission.
+
+HEWLETT-PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
+HEWLETT-PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
+ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+SOFTWARE.
+
+********************************************************/
+/* $XFree86: xc/lib/Xi/XOpenDev.c,v 3.3 2001/12/14 19:55:20 dawes Exp $ */
+
+/***********************************************************************
+ *
+ * XOpenDevice - Request the server to open and extension input device.
+ *
+ */
+
+#include <X11/extensions/XI.h>
+#include <X11/extensions/XIproto.h>
+#include <X11/Xlibint.h>
+#include <X11/extensions/XInput.h>
+#include <X11/extensions/extutil.h>
+#include "XIint.h"
+
+XDevice
+*XOpenDevice(dpy, id)
+ register Display *dpy;
+ register XID id;
+ {
+ register long rlen; /* raw length */
+ xOpenDeviceReq *req;
+ xOpenDeviceReply rep;
+ XDevice *dev;
+ XExtDisplayInfo *info = XInput_find_display (dpy);
+
+ LockDisplay (dpy);
+ if (_XiCheckExtInit(dpy, XInput_Initial_Release) == -1)
+ return ((XDevice *) NoSuchExtension);
+
+ GetReq(OpenDevice,req);
+ req->reqType = info->codes->major_opcode;
+ req->ReqType = X_OpenDevice;
+ req->deviceid = id;
+
+ if (! _XReply (dpy, (xReply *) &rep, 0, xFalse))
+ {
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return (XDevice *) NULL;
+ }
+
+ rlen = rep.length << 2;
+ dev = (XDevice *) Xmalloc (sizeof(XDevice) + rep.num_classes *
+ sizeof (XInputClassInfo));
+ if (dev)
+ {
+ int dlen; /* data length */
+
+ dev->device_id = req->deviceid;
+ dev->num_classes = rep.num_classes;
+ dev->classes = (XInputClassInfo *) ((char *) dev + sizeof (XDevice));
+ dlen = rep.num_classes * sizeof(xInputClassInfo);
+ _XRead (dpy, (char *)dev->classes, dlen);
+ /* could be padding that we still need to eat (yummy!) */
+ if(rlen - dlen > 0)
+ _XEatData (dpy, (unsigned long) rlen - dlen);
+ }
+ else
+ _XEatData (dpy, (unsigned long) rlen);
+
+ UnlockDisplay (dpy);
+ SyncHandle();
+ return (dev);
+ }
+