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      1  1.12   mlelstv /*	$NetBSD: keyboard.c,v 1.12 2021/09/22 14:15:29 mlelstv Exp $ */
      2   1.1   hannken 
      3   1.1   hannken /*-
      4   1.6      jmmv  * Copyright (c) 1998, 2004 The NetBSD Foundation, Inc.
      5   1.1   hannken  * All rights reserved.
      6   1.1   hannken  *
      7   1.1   hannken  * This code is derived from software contributed to The NetBSD Foundation
      8   1.1   hannken  * by Juergen Hannken-Illjes.
      9   1.1   hannken  *
     10   1.1   hannken  * Redistribution and use in source and binary forms, with or without
     11   1.1   hannken  * modification, are permitted provided that the following conditions
     12   1.1   hannken  * are met:
     13   1.1   hannken  * 1. Redistributions of source code must retain the above copyright
     14   1.1   hannken  *    notice, this list of conditions and the following disclaimer.
     15   1.1   hannken  * 2. Redistributions in binary form must reproduce the above copyright
     16   1.1   hannken  *    notice, this list of conditions and the following disclaimer in the
     17   1.1   hannken  *    documentation and/or other materials provided with the distribution.
     18   1.1   hannken  *
     19   1.1   hannken  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20   1.1   hannken  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21   1.1   hannken  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22   1.1   hannken  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23   1.1   hannken  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24   1.1   hannken  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25   1.1   hannken  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26   1.1   hannken  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27   1.1   hannken  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28   1.1   hannken  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29   1.1   hannken  * POSSIBILITY OF SUCH DAMAGE.
     30   1.1   hannken  */
     31   1.1   hannken 
     32   1.1   hannken #include <sys/ioctl.h>
     33   1.1   hannken #include <sys/time.h>
     34   1.8      jmmv 
     35   1.1   hannken #include <dev/wscons/wsksymdef.h>
     36   1.1   hannken #include <dev/wscons/wsconsio.h>
     37   1.8      jmmv 
     38   1.1   hannken #include <err.h>
     39   1.5  christos #include <errno.h>
     40   1.8      jmmv #include <stdlib.h>
     41  1.10   mlelstv #include <string.h>
     42   1.8      jmmv 
     43   1.1   hannken #include "wsconsctl.h"
     44   1.1   hannken 
     45   1.1   hannken static int kbtype;
     46   1.3        ad static int keyclick;
     47   1.1   hannken static struct wskbd_bell_data bell;
     48   1.1   hannken static struct wskbd_bell_data dfbell;
     49   1.1   hannken static struct wscons_keymap mapdata[KS_NUMKEYCODES];
     50   1.8      jmmv struct wskbd_map_data kbmap = /* used in map_parse.y and in util.c */
     51   1.8      jmmv     { KS_NUMKEYCODES, mapdata };
     52  1.10   mlelstv static struct wscons_keymap oldmapdata[KS_NUMKEYCODES];
     53  1.10   mlelstv static struct wskbd_map_data oldkbmap =
     54  1.10   mlelstv     { KS_NUMKEYCODES, oldmapdata };
     55   1.1   hannken static struct wskbd_keyrepeat_data repeat;
     56   1.1   hannken static struct wskbd_keyrepeat_data dfrepeat;
     57   1.4  christos static struct wskbd_scroll_data scroll;
     58   1.1   hannken static int ledstate;
     59   1.2   hannken static kbd_t kbdencoding;
     60   1.5  christos static int havescroll = 1;
     61  1.11   mlelstv static int kbmode;
     62   1.1   hannken 
     63   1.1   hannken struct field keyboard_field_tab[] = {
     64   1.1   hannken     { "type",			&kbtype,	FMT_KBDTYPE,	FLG_RDONLY },
     65  1.11   mlelstv     { "mode",			&kbmode,	FMT_UINT,	FLG_MODIFY },
     66   1.1   hannken     { "bell.pitch",		&bell.pitch,	FMT_UINT,	FLG_MODIFY },
     67   1.1   hannken     { "bell.period",		&bell.period,	FMT_UINT,	FLG_MODIFY },
     68   1.1   hannken     { "bell.volume",		&bell.volume,	FMT_UINT,	FLG_MODIFY },
     69   1.1   hannken     { "bell.pitch.default",	&dfbell.pitch,	FMT_UINT,	FLG_MODIFY },
     70   1.1   hannken     { "bell.period.default",	&dfbell.period,	FMT_UINT,	FLG_MODIFY },
     71   1.1   hannken     { "bell.volume.default",	&dfbell.volume,	FMT_UINT,	FLG_MODIFY },
     72   1.8      jmmv     { "map",			&kbmap,		FMT_KBMAP,	FLG_MODIFY |
     73   1.8      jmmv     								FLG_NOAUTO },
     74   1.1   hannken     { "repeat.del1",		&repeat.del1,	FMT_UINT,	FLG_MODIFY },
     75   1.1   hannken     { "repeat.deln",		&repeat.delN,	FMT_UINT,	FLG_MODIFY },
     76   1.1   hannken     { "repeat.del1.default",	&dfrepeat.del1,	FMT_UINT,	FLG_MODIFY },
     77   1.1   hannken     { "repeat.deln.default",	&dfrepeat.delN,	FMT_UINT,	FLG_MODIFY },
     78   1.1   hannken     { "ledstate",		&ledstate,	FMT_UINT,	0 },
     79   1.1   hannken     { "encoding",		&kbdencoding,	FMT_KBDENC,	FLG_MODIFY },
     80   1.3        ad     { "keyclick",		&keyclick,	FMT_UINT,	FLG_MODIFY },
     81   1.8      jmmv     { "scroll.mode",		&scroll.mode,	FMT_UINT,	FLG_MODIFY },
     82   1.8      jmmv     { "scroll.modifier",	&scroll.modifier, FMT_UINT,	FLG_MODIFY },
     83   1.1   hannken };
     84   1.1   hannken 
     85   1.8      jmmv int keyboard_field_tab_len = sizeof(keyboard_field_tab) /
     86   1.8      jmmv 	sizeof(keyboard_field_tab[0]);
     87   1.1   hannken 
     88  1.10   mlelstv static void
     89  1.10   mlelstv diff_kmap(struct wskbd_map_data *omap, struct wskbd_map_data *nmap)
     90  1.10   mlelstv {
     91  1.10   mlelstv 	unsigned int u;
     92  1.10   mlelstv 	struct wscons_keymap *op, *np;
     93  1.10   mlelstv 
     94  1.10   mlelstv 	for (u = 0; u < nmap->maplen; u++) {
     95  1.10   mlelstv 		op = omap->map + u;
     96  1.10   mlelstv 		np = nmap->map + u;
     97  1.10   mlelstv 		if (op->command == np->command &&
     98  1.10   mlelstv 		    op->group1[0] == np->group1[0] &&
     99  1.10   mlelstv 		    op->group1[1] == np->group1[1] &&
    100  1.10   mlelstv 		    op->group2[0] == np->group2[0] &&
    101  1.10   mlelstv 		    op->group2[1] == np->group2[1]) {
    102  1.10   mlelstv 			np->command = KS_voidSymbol;
    103  1.10   mlelstv 			np->group1[0] = KS_voidSymbol;
    104  1.10   mlelstv 			np->group1[1] = KS_voidSymbol;
    105  1.10   mlelstv 			np->group2[0] = KS_voidSymbol;
    106  1.10   mlelstv 			np->group2[1] = KS_voidSymbol;
    107  1.10   mlelstv 		}
    108  1.10   mlelstv 	}
    109  1.10   mlelstv }
    110  1.10   mlelstv 
    111   1.1   hannken void
    112   1.7   xtraeme keyboard_get_values(int fd)
    113   1.1   hannken {
    114   1.8      jmmv 
    115   1.1   hannken 	if (field_by_value(&kbtype)->flags & FLG_GET)
    116   1.1   hannken 		if (ioctl(fd, WSKBDIO_GTYPE, &kbtype) < 0)
    117   1.8      jmmv 			err(EXIT_FAILURE, "WSKBDIO_GTYPE");
    118   1.1   hannken 
    119  1.11   mlelstv 	if (field_by_value(&kbmode)->flags & FLG_GET) {
    120  1.11   mlelstv 		ioctl(fd, WSKBDIO_GETMODE, &kbmode);
    121  1.11   mlelstv 		/* Optional; don't complain. */
    122  1.11   mlelstv 	}
    123  1.11   mlelstv 
    124   1.1   hannken 	bell.which = 0;
    125   1.1   hannken 	if (field_by_value(&bell.pitch)->flags & FLG_GET)
    126   1.1   hannken 		bell.which |= WSKBD_BELL_DOPITCH;
    127   1.1   hannken 	if (field_by_value(&bell.period)->flags & FLG_GET)
    128   1.1   hannken 		bell.which |= WSKBD_BELL_DOPERIOD;
    129   1.1   hannken 	if (field_by_value(&bell.volume)->flags & FLG_GET)
    130   1.1   hannken 		bell.which |= WSKBD_BELL_DOVOLUME;
    131   1.1   hannken 	if (bell.which != 0 && ioctl(fd, WSKBDIO_GETBELL, &bell) < 0)
    132   1.8      jmmv 		err(EXIT_FAILURE, "WSKBDIO_GETBELL");
    133   1.1   hannken 
    134   1.1   hannken 	dfbell.which = 0;
    135   1.1   hannken 	if (field_by_value(&dfbell.pitch)->flags & FLG_GET)
    136   1.1   hannken 		dfbell.which |= WSKBD_BELL_DOPITCH;
    137   1.1   hannken 	if (field_by_value(&dfbell.period)->flags & FLG_GET)
    138   1.1   hannken 		dfbell.which |= WSKBD_BELL_DOPERIOD;
    139   1.1   hannken 	if (field_by_value(&dfbell.volume)->flags & FLG_GET)
    140   1.1   hannken 		dfbell.which |= WSKBD_BELL_DOVOLUME;
    141   1.1   hannken 	if (dfbell.which != 0 &&
    142   1.1   hannken 	    ioctl(fd, WSKBDIO_GETDEFAULTBELL, &dfbell) < 0)
    143   1.8      jmmv 		err(EXIT_FAILURE, "WSKBDIO_GETDEFAULTBELL");
    144   1.1   hannken 
    145   1.1   hannken 	if (field_by_value(&kbmap)->flags & FLG_GET) {
    146   1.1   hannken 		kbmap.maplen = KS_NUMKEYCODES;
    147   1.1   hannken 		if (ioctl(fd, WSKBDIO_GETMAP, &kbmap) < 0)
    148   1.8      jmmv 			err(EXIT_FAILURE, "WSKBDIO_GETMAP");
    149  1.10   mlelstv 		memcpy(oldmapdata, mapdata, sizeof(oldmapdata));
    150   1.1   hannken 	}
    151   1.1   hannken 
    152   1.1   hannken 	repeat.which = 0;
    153   1.1   hannken 	if (field_by_value(&repeat.del1)->flags & FLG_GET)
    154   1.1   hannken 		repeat.which |= WSKBD_KEYREPEAT_DODEL1;
    155   1.1   hannken 	if (field_by_value(&repeat.delN)->flags & FLG_GET)
    156   1.1   hannken 		repeat.which |= WSKBD_KEYREPEAT_DODELN;
    157   1.1   hannken 	if (repeat.which != 0 &&
    158   1.1   hannken 	    ioctl(fd, WSKBDIO_GETKEYREPEAT, &repeat) < 0)
    159   1.8      jmmv 		err(EXIT_FAILURE, "WSKBDIO_GETKEYREPEAT");
    160   1.1   hannken 
    161   1.1   hannken 	dfrepeat.which = 0;
    162   1.1   hannken 	if (field_by_value(&dfrepeat.del1)->flags & FLG_GET)
    163   1.1   hannken 		dfrepeat.which |= WSKBD_KEYREPEAT_DODEL1;
    164   1.1   hannken 	if (field_by_value(&dfrepeat.delN)->flags & FLG_GET)
    165   1.1   hannken 		dfrepeat.which |= WSKBD_KEYREPEAT_DODELN;
    166   1.1   hannken 	if (dfrepeat.which != 0 &&
    167   1.1   hannken 	    ioctl(fd, WSKBDIO_GETKEYREPEAT, &dfrepeat) < 0)
    168   1.8      jmmv 		err(EXIT_FAILURE, "WSKBDIO_GETKEYREPEAT");
    169   1.1   hannken 
    170   1.1   hannken 	if (field_by_value(&ledstate)->flags & FLG_GET)
    171   1.1   hannken 		if (ioctl(fd, WSKBDIO_GETLEDS, &ledstate) < 0)
    172   1.8      jmmv 			err(EXIT_FAILURE, "WSKBDIO_GETLEDS");
    173   1.1   hannken 
    174   1.1   hannken 	if (field_by_value(&kbdencoding)->flags & FLG_GET)
    175   1.1   hannken 		if (ioctl(fd, WSKBDIO_GETENCODING, &kbdencoding) < 0)
    176   1.8      jmmv 			err(EXIT_FAILURE, "WSKBDIO_GETENCODING");
    177   1.3        ad 
    178   1.3        ad 	if (field_by_value(&keyclick)->flags & FLG_GET) {
    179   1.3        ad 		ioctl(fd, WSKBDIO_GETKEYCLICK, &keyclick);
    180   1.3        ad 		/* Optional; don't complain. */
    181   1.3        ad 	}
    182   1.4  christos 
    183   1.4  christos 	scroll.which = 0;
    184   1.4  christos 	if (field_by_value(&scroll.mode)->flags & FLG_GET)
    185   1.4  christos 		scroll.which |= WSKBD_SCROLL_DOMODE;
    186   1.4  christos 	if (field_by_value(&scroll.modifier)->flags & FLG_GET)
    187   1.4  christos 		scroll.which |= WSKBD_SCROLL_DOMODIFIER;
    188   1.5  christos 	if (scroll.which != 0) {
    189   1.5  christos 		if (ioctl(fd, WSKBDIO_GETSCROLL, &scroll) == -1) {
    190   1.5  christos 			if (errno != ENODEV)
    191   1.8      jmmv 				err(EXIT_FAILURE, "WSKBDIO_GETSCROLL");
    192   1.5  christos 			else
    193   1.5  christos 				havescroll = 0;
    194   1.5  christos 		}
    195   1.5  christos 	}
    196   1.1   hannken }
    197   1.1   hannken 
    198   1.1   hannken void
    199   1.7   xtraeme keyboard_put_values(int fd)
    200   1.1   hannken {
    201   1.8      jmmv 
    202  1.11   mlelstv 	if (field_by_value(&kbmode)->flags & FLG_SET) {
    203  1.12   mlelstv 		if (ioctl(fd, WSKBDIO_SETMODE, &kbmode) < 0)
    204  1.11   mlelstv 			err(EXIT_FAILURE, "WSKBDIO_SETMODE");
    205  1.11   mlelstv 		pr_field(field_by_value(&kbmode), " -> ");
    206  1.11   mlelstv 	}
    207  1.11   mlelstv 
    208   1.1   hannken 	bell.which = 0;
    209   1.1   hannken 	if (field_by_value(&bell.pitch)->flags & FLG_SET)
    210   1.1   hannken 		bell.which |= WSKBD_BELL_DOPITCH;
    211   1.1   hannken 	if (field_by_value(&bell.period)->flags & FLG_SET)
    212   1.1   hannken 		bell.which |= WSKBD_BELL_DOPERIOD;
    213   1.1   hannken 	if (field_by_value(&bell.volume)->flags & FLG_SET)
    214   1.1   hannken 		bell.which |= WSKBD_BELL_DOVOLUME;
    215   1.1   hannken 	if (bell.which != 0 && ioctl(fd, WSKBDIO_SETBELL, &bell) < 0)
    216   1.8      jmmv 		err(EXIT_FAILURE, "WSKBDIO_SETBELL");
    217   1.1   hannken 	if (bell.which & WSKBD_BELL_DOPITCH)
    218   1.1   hannken 		pr_field(field_by_value(&bell.pitch), " -> ");
    219   1.1   hannken 	if (bell.which & WSKBD_BELL_DOPERIOD)
    220   1.1   hannken 		pr_field(field_by_value(&bell.period), " -> ");
    221   1.1   hannken 	if (bell.which & WSKBD_BELL_DOVOLUME)
    222   1.1   hannken 		pr_field(field_by_value(&bell.volume), " -> ");
    223   1.1   hannken 
    224   1.1   hannken 	dfbell.which = 0;
    225   1.1   hannken 	if (field_by_value(&dfbell.pitch)->flags & FLG_SET)
    226   1.1   hannken 		dfbell.which |= WSKBD_BELL_DOPITCH;
    227   1.1   hannken 	if (field_by_value(&dfbell.period)->flags & FLG_SET)
    228   1.1   hannken 		dfbell.which |= WSKBD_BELL_DOPERIOD;
    229   1.1   hannken 	if (field_by_value(&dfbell.volume)->flags & FLG_SET)
    230   1.1   hannken 		dfbell.which |= WSKBD_BELL_DOVOLUME;
    231   1.1   hannken 	if (dfbell.which != 0 &&
    232   1.1   hannken 	    ioctl(fd, WSKBDIO_SETDEFAULTBELL, &dfbell) < 0)
    233   1.8      jmmv 		err(EXIT_FAILURE, "WSKBDIO_SETDEFAULTBELL");
    234   1.1   hannken 	if (dfbell.which & WSKBD_BELL_DOPITCH)
    235   1.1   hannken 		pr_field(field_by_value(&dfbell.pitch), " -> ");
    236   1.1   hannken 	if (dfbell.which & WSKBD_BELL_DOPERIOD)
    237   1.1   hannken 		pr_field(field_by_value(&dfbell.period), " -> ");
    238   1.1   hannken 	if (dfbell.which & WSKBD_BELL_DOVOLUME)
    239   1.1   hannken 		pr_field(field_by_value(&dfbell.volume), " -> ");
    240   1.1   hannken 
    241   1.1   hannken 	if (field_by_value(&kbmap)->flags & FLG_SET) {
    242   1.1   hannken 		if (ioctl(fd, WSKBDIO_SETMAP, &kbmap) < 0)
    243   1.8      jmmv 			err(EXIT_FAILURE, "WSKBDIO_SETMAP");
    244  1.10   mlelstv 		if (field_by_value(&kbmap)->flags & FLG_MODIFIED) {
    245  1.10   mlelstv 			diff_kmap(&oldkbmap, &kbmap);
    246  1.10   mlelstv 			pr_field(field_by_value(&kbmap), " +> ");
    247  1.10   mlelstv 		} else
    248  1.10   mlelstv 			pr_field(field_by_value(&kbmap), " -> ");
    249   1.1   hannken 	}
    250   1.1   hannken 
    251   1.1   hannken 	repeat.which = 0;
    252   1.1   hannken 	if (field_by_value(&repeat.del1)->flags & FLG_SET)
    253   1.1   hannken 		repeat.which |= WSKBD_KEYREPEAT_DODEL1;
    254   1.1   hannken 	if (field_by_value(&repeat.delN)->flags & FLG_SET)
    255   1.1   hannken 		repeat.which |= WSKBD_KEYREPEAT_DODELN;
    256   1.1   hannken 	if (repeat.which != 0 &&
    257   1.1   hannken 	    ioctl(fd, WSKBDIO_SETKEYREPEAT, &repeat) < 0)
    258   1.8      jmmv 		err(EXIT_FAILURE, "WSKBDIO_SETKEYREPEAT");
    259   1.1   hannken 	if (repeat.which & WSKBD_KEYREPEAT_DODEL1)
    260   1.1   hannken 		pr_field(field_by_value(&repeat.del1), " -> ");
    261   1.1   hannken 	if (repeat.which & WSKBD_KEYREPEAT_DODELN)
    262   1.1   hannken 		pr_field(field_by_value(&repeat.delN), " -> ");
    263   1.1   hannken 
    264   1.1   hannken 	dfrepeat.which = 0;
    265   1.1   hannken 	if (field_by_value(&dfrepeat.del1)->flags & FLG_SET)
    266   1.1   hannken 		dfrepeat.which |= WSKBD_KEYREPEAT_DODEL1;
    267   1.1   hannken 	if (field_by_value(&dfrepeat.delN)->flags & FLG_SET)
    268   1.1   hannken 		dfrepeat.which |= WSKBD_KEYREPEAT_DODELN;
    269   1.1   hannken 	if (dfrepeat.which != 0 &&
    270   1.1   hannken 	    ioctl(fd, WSKBDIO_SETDEFAULTKEYREPEAT, &dfrepeat) < 0)
    271   1.8      jmmv 		err(EXIT_FAILURE, "WSKBDIO_SETDEFAULTKEYREPEAT");
    272   1.1   hannken 	if (dfrepeat.which &WSKBD_KEYREPEAT_DODEL1)
    273   1.1   hannken 		pr_field(field_by_value(&dfrepeat.del1), " -> ");
    274   1.1   hannken 	if (dfrepeat.which & WSKBD_KEYREPEAT_DODELN)
    275   1.1   hannken 		pr_field(field_by_value(&dfrepeat.delN), " -> ");
    276   1.1   hannken 
    277   1.1   hannken 	if (field_by_value(&ledstate)->flags & FLG_SET) {
    278   1.1   hannken 		if (ioctl(fd, WSKBDIO_SETLEDS, &ledstate) < 0)
    279   1.8      jmmv 			err(EXIT_FAILURE, "WSKBDIO_SETLEDS");
    280   1.1   hannken 		pr_field(field_by_value(&ledstate), " -> ");
    281   1.1   hannken 	}
    282   1.1   hannken 
    283   1.1   hannken 	if (field_by_value(&kbdencoding)->flags & FLG_SET) {
    284   1.1   hannken 		if (ioctl(fd, WSKBDIO_SETENCODING, &kbdencoding) < 0)
    285   1.8      jmmv 			err(EXIT_FAILURE, "WSKBDIO_SETENCODING");
    286   1.1   hannken 		pr_field(field_by_value(&kbdencoding), " -> ");
    287   1.3        ad 	}
    288   1.3        ad 
    289   1.3        ad 	if (field_by_value(&keyclick)->flags & FLG_SET) {
    290   1.3        ad 		if (ioctl(fd, WSKBDIO_SETKEYCLICK, &keyclick) < 0)
    291   1.8      jmmv 			err(EXIT_FAILURE, "WSKBDIO_SETKEYCLICK");
    292   1.3        ad 		pr_field(field_by_value(&keyclick), " -> ");
    293   1.1   hannken 	}
    294   1.4  christos 
    295   1.4  christos 
    296   1.5  christos 	if (havescroll == 0)
    297   1.5  christos 		return;
    298   1.5  christos 
    299   1.4  christos 	scroll.which = 0;
    300   1.4  christos 	if (field_by_value(&scroll.mode)->flags & FLG_SET)
    301   1.4  christos 		scroll.which |= WSKBD_SCROLL_DOMODE;
    302   1.4  christos 	if (field_by_value(&scroll.modifier)->flags & FLG_SET)
    303   1.4  christos 		scroll.which |= WSKBD_SCROLL_DOMODIFIER;
    304   1.4  christos 
    305   1.4  christos 	if (scroll.which & WSKBD_SCROLL_DOMODE)
    306   1.4  christos 		pr_field(field_by_value(&scroll.mode), " -> ");
    307   1.4  christos 	if (scroll.which & WSKBD_SCROLL_DOMODIFIER)
    308   1.4  christos 		pr_field(field_by_value(&scroll.modifier), " -> ");
    309   1.5  christos 	if (scroll.which != 0) {
    310   1.5  christos 		if (ioctl(fd, WSKBDIO_SETSCROLL, &scroll) == -1) {
    311   1.5  christos 			if (errno != ENODEV)
    312   1.8      jmmv 				err(EXIT_FAILURE, "WSKBDIO_SETSCROLL");
    313   1.5  christos 			else {
    314   1.8      jmmv 				warnx("scrolling is not supported by this "
    315   1.8      jmmv 				    "kernel");
    316   1.5  christos 				havescroll = 0;
    317   1.5  christos 			}
    318   1.5  christos 		}
    319   1.5  christos 	}
    320   1.1   hannken }
    321   1.4  christos 
    322