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114 lines
3.9 KiB
C
114 lines
3.9 KiB
C
/* $Xorg: XOpenDev.c,v 1.4 2001/02/09 02:03:51 xorgcvs Exp $ */
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/************************************************************
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Copyright 1989, 1998 The Open Group
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Permission to use, copy, modify, distribute, and sell this software and its
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documentation for any purpose is hereby granted without fee, provided that
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the above copyright notice appear in all copies and that both that
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copyright notice and this permission notice appear in supporting
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documentation.
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of The Open Group shall not be
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used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from The Open Group.
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Copyright 1989 by Hewlett-Packard Company, Palo Alto, California.
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All Rights Reserved
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Permission to use, copy, modify, and distribute this software and its
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documentation for any purpose and without fee is hereby granted,
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provided that the above copyright notice appear in all copies and that
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both that copyright notice and this permission notice appear in
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supporting documentation, and that the name of Hewlett-Packard not be
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used in advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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HEWLETT-PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
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ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
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HEWLETT-PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
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ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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SOFTWARE.
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********************************************************/
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/* $XFree86: xc/lib/Xi/XOpenDev.c,v 3.4 2002/10/16 00:37:29 dawes Exp $ */
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/***********************************************************************
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*
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* XOpenDevice - Request the server to open and extension input device.
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*
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*/
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#include <X11/extensions/XI.h>
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#include <X11/extensions/XIproto.h>
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#include <X11/Xlibint.h>
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#include <X11/extensions/XInput.h>
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#include <X11/extensions/extutil.h>
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#include "XIint.h"
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XDevice
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*XOpenDevice(dpy, id)
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register Display *dpy;
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register XID id;
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{
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register long rlen; /* raw length */
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xOpenDeviceReq *req;
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xOpenDeviceReply rep;
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XDevice *dev;
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XExtDisplayInfo *info = XInput_find_display (dpy);
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LockDisplay (dpy);
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if (_XiCheckExtInit(dpy, XInput_Initial_Release) == -1)
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return ((XDevice *) NoSuchExtension);
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GetReq(OpenDevice,req);
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req->reqType = info->codes->major_opcode;
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req->ReqType = X_OpenDevice;
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req->deviceid = id;
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if (! _XReply (dpy, (xReply *) &rep, 0, xFalse))
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{
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UnlockDisplay(dpy);
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SyncHandle();
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return (XDevice *) NULL;
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}
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rlen = rep.length << 2;
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dev = (XDevice *) Xmalloc (sizeof(XDevice) + rep.num_classes *
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sizeof (XInputClassInfo));
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if (dev)
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{
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int dlen; /* data length */
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dev->device_id = req->deviceid;
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dev->num_classes = rep.num_classes;
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dev->classes = (XInputClassInfo *) ((char *) dev + sizeof (XDevice));
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dlen = rep.num_classes * sizeof(xInputClassInfo);
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_XRead (dpy, (char *)dev->classes, dlen);
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/* could be padding that we still need to eat (yummy!) */
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if(rlen - dlen > 0)
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_XEatData (dpy, (unsigned long) rlen - dlen);
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}
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else
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_XEatData (dpy, (unsigned long) rlen);
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UnlockDisplay (dpy);
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SyncHandle();
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return (dev);
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}
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