1 .\" Copyright (c) 1995 James R. Van Zandt <jrv@vanzandt.mv.com>
2 .\" Sat Feb 18 09:11:07 EST 1995
4 .\" This is free documentation; you can redistribute it and/or
5 .\" modify it under the terms of the GNU General Public License as
6 .\" published by the Free Software Foundation; either version 2 of
7 .\" the License, or (at your option) any later version.
9 .\" The GNU General Public License's references to "object code"
10 .\" and "executables" are to be interpreted as the output of any
11 .\" document formatting or typesetting system, including
12 .\" intermediate and printed output.
14 .\" This manual is distributed in the hope that it will be useful,
15 .\" but WITHOUT ANY WARRANTY; without even the implied warranty of
16 .\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 .\" GNU General Public License for more details.
19 .\" You should have received a copy of the GNU General Public
20 .\" License along with this manual; if not, write to the Free
21 .\" Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111,
24 .\" Modified, Sun Feb 26 15:08:05 1995, faith@cs.unc.edu
25 .\" 2007-12-17, Samuel Thibault <samuel.thibault@ens-lyon.org>:
26 .\" document the VT_GETHIFONTMASK ioctl
28 .\" Japanese Version Copyright (c) 1996,1997,1998 ISHIKAWA Mutsumi
29 .\" all rights reserved.
30 .\" Translated Tue Feb 6 16:30:31 JST 1997
31 .\" by ISHIKAWA Mutsumi <ishikawa@linux.or.jp>
33 .\" Japanese Version Last Modified Sun Jan 11 03:55:54 1998
34 .\" by ISHIKAWA Mutsumi <ishikawa@linux.or.jp>
35 .\" Updated Sat Feb 10 23:17:30 JST 2001
36 .\" by Yuichi SATO <sato@complex.eng.hokudai.ac.jp>
37 .\" Updated 2008-02-12, Akihiro MOTOKI <amotoki@dd.iij4u.or.jp>, LDP v2.77
39 .\" WORD: virtual console ²¾ÁÛ¥³¥ó¥½¡¼¥ë
40 .\" WORD: memory ¥á¥â¥ê
41 .\" WORD: permission ¥Ñ¡¼¥ß¥Ã¥·¥ç¥ó
42 .\" WORD: prefix ¥×¥ì¥Õ¥£¥Ã¥¯¥¹
43 .\" WORD: screen ¥¹¥¯¥ê¡¼¥ó
44 .\" WORD: cursor ¥«¡¼¥½¥ë
45 .\" WORD: Braille ¥Ö¥é¥¤¥æÅÀ»ú
47 .TH VCS 4 2007-12-17 "Linux" "Linux Programmer's Manual"
49 vcs, vcsa \- ²¾ÁÛ¥³¥ó¥½¡¼¥ë¥á¥â¥ê (virtual console memory)
51 \fI/dev/vcs0\fP ¤Ï¥á¥¸¥ã¡¼¥Ê¥ó¥Ð¡¼ (major number) 7¡¢¥Þ¥¤¥Ê¡¼¥Ê¥ó¥Ð¡¼
52 (minor number) 0 ¤Î¥¥ã¥é¥¯¥¿¡¼¥Ç¥Ð¥¤¥¹ (character device) ¤Ç¡¢
53 Ä̾¤½¤Î¥â¡¼¥É¤Ï 0644¡¢¥ª¡¼¥Ê¤Ï root.tty ¤Ç¤¢¤ë¡£
54 ¤³¤Î¥Ç¥Ð¥¤¥¹¥Õ¥¡¥¤¥ë (device file) ¤Ï
55 ¸½ºßɽ¼¨¤µ¤ì¤Æ¤¤¤ë²¾ÁÛ¥³¥ó¥½¡¼¥ëüËö¤Î¥á¥â¥ê¤ò»²¾È¤¹¤ë¡£
57 \fB/dev/vcs[1\-63]\fP ¤Ï²¾ÁÛ¥³¥ó¥½¡¼¥ëüËö¤Î¤¿¤á¤Î
58 ¥¥ã¥é¥¯¥¿¡¼¥Ç¥Ð¥¤¥¹¤Ç¡¢¥á¥¸¥ã¡¼¥Ê¥ó¥Ð¡¼¤¬ 7¡¢¥Þ¥¤¥Ê¡¼¥Ê¥ó¥Ð¡¼¤¬ 1 ¤«¤é 63¡¢
59 Ä̾ï¤Ï¥â¡¼¥É¤¬ 0644¡¢¥ª¡¼¥Ê¡¼¤¬ root.tty ¤Ç¤¢¤ë¡£
60 \fB/dev/vcsa[0\-63]\fP ¤Ï \fB/dev/vcs[1\-63]\fP ¤ÈƱÍͤǤ¢¤ë¤¬¡¢
61 °À¤ò³ÊǼ¤¹¤ë¤Î¤Ë (¥Û¥¹¥È¥Ð¥¤¥È¥ª¡¼¥À¤Î)
63 ¤ò»ÈÍѤ·¤Æ¤¤¤ëÅÀ¡¢¥¹¥¯¥ê¡¼¥ó¤Î¥µ¥¤¥º¡¦¥«¡¼¥½¥ë¤Î°ÌÃÖ¤òɽ¤¹
65 \fIlines\fP, \fIcolumns\fP, \fIx\fP, \fIy\fP
66 (\fIx\fP =\fIy\fP = 0 ¤¬²èÌ̤κ¸¾å) ¤¬ÀèƬ¤Ë¤¢¤ëÅÀ¤¬°Û¤Ê¤ë¡£
68 512 ʸ»ú¤«¤éÀ®¤ë¥Õ¥©¥ó¥È¤ò¥í¡¼¥É¤·¤¿¾ì¹ç¡¢
69 9 ¥Ó¥Ã¥ÈÌܤξðÊó¤Ï \fI/dev/tty[1\-63]\fP ¤ËÂФ·¤Æ
71 \fBVT_GETHIFONTMASK\fP Áàºî¤ò¹Ô¤¦¤³¤È¤Ç¼èÆÀ¤Ç¤¤ë
72 (\fBVT_GETHIFONTMASK\fP Áàºî¤Ï¥«¡¼¥Í¥ë 2.6.18 °Ê¹ß¤Î Linux ¤Ç
76 ¤Î 3 ÈÖÌܤΰú¤¿ô¤¬»Ø¤¹
78 ¤Ë³ÊǼ¤µ¤ì¤ÆÊÖ¤µ¤ì¤ë¡£
85 ½¾¤Ã¤Æ¡¢¥·¥¹¥Æ¥à´ÉÍý¼Ô¤Ï¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¥Ñ¡¼¥ß¥Ã¥·¥ç¥ó
86 (filesystem permission) ¤ò»È¤Ã¤Æ¥¢¥¯¥»¥¹¤ò¥³¥ó¥È¥í¡¼¥ë¤Ç¤¤ë¡£
88 ºÇ½é¤Î 8 ¤Ä¤Î²¾ÁÛüËö¤Î¤¿¤á¤Î¥Ç¥Ð¥¤¥¹¤Ï¡¢¼¡¤Î¤è¤¦¤Ë¤·¤Æºî¤ë»ö¤¬¤Ç¤¤ë:
91 for x in 0 1 2 3 4 5 6 7 8; do
92 mknod \-m 644 /dev/vcs$x c 7 $x;
93 mknod \-m 644 /dev/vcsa$x c 7 $[$x+128];
95 chown root:tty /dev/vcs*
99 ¤Ë¤è¤ëÍ×µá¤Ï¥µ¥Ý¡¼¥È¤µ¤ì¤Ê¤¤¡£
105 .\" Andries Brouwer <aeb@cwi.nl>
107 Linux ¥«¡¼¥Í¥ë¥Ð¡¼¥¸¥ç¥ó 1.1.92 ¤ÇƳÆþ¤µ¤ì¤¿¡£
109 vt3 ¤Î¥¹¥¯¥ê¡¼¥ó¥À¥ó¥×¤ò¼Â¹Ô¤¹¤ë¤Ë¤Ï¡¢Ã¼Ëö¤ò vt1 ¤ËÀÚÂؤ¨¤Æ
110 \fIcat /dev/vcs3 >foo\fP ¤È¥¿¥¤¥×¤¹¤ì¤Ð¤è¤¤¡£
111 µ¤¤òÉÕ¤±¤ÆÍߤ·¤¤¤Î¤Ï¡¢¤³¤Î½ÐÎϤϲþ¹Ôʸ»ú (newline character) ¤ò
112 ´Þ¤ó¤Ç¤¤¤Ê¤¤¤È¤¤¤¦»ö¤Ç¤¢¤ë¡£
113 ½¾¤Ã¤Æ¡¢\fIfold \-w 81 /dev/vcs3 | lpr\fP ¤ä
114 (¤¾¤Ã¤È¤¹¤ë¤¬) \fIsetterm \-dump 3 \-file /proc/self/fd/1\fP ¤Î¤è¤¦¤Ê
115 ²¿¤é¤«¤Î½èÍý¤¬É¬Íפˤʤ뤫¤â¤·¤ì¤Ê¤¤¡£
117 \fI/dev/vcsa0\fP ¥Ç¥Ð¥¤¥¹¤ò»È¤¦¤³¤È¤Ç¡¢
118 ¥Ö¥é¥¤¥æÅÀ»ú¤ò¥µ¥Ý¡¼¥È¤¹¤ë¤³¤È¤¬¤Ç¤¤ë¡£
120 °Ê²¼¤Î¥×¥í¥°¥é¥à¤ÏÆó¤ÄÌܤβ¾ÁÛ¥³¥ó¥½¡¼¥ë¤Î¥«¡¼¥½¥ë°ÌÃ֤Υ¹¥¯¥ê¡¼¥ó°À¤Èʸ»ú
121 ¤òɽ¼¨¤·¤¿¸å¡¢¥«¡¼¥½¥ë°ÌÃÖ¤ÎÇØ·Ê¿§¤òÊѹ¹¤¹¤ë :
128 #include <sys/ioctl.h>
129 #include <linux/vt.h>
135 char *device = "/dev/vcsa2";
136 char *console = "/dev/tty2";
137 struct {unsigned char lines, cols, x, y;} scrn;
140 unsigned char ch, attrib;
142 fd = open(console, O_RDWR);
147 if (ioctl(fd, VT_GETHIFONTMASK, &mask) < 0) {
148 perror("VT_GETHIFONTMASK");
152 fd = open(device, O_RDWR);
157 (void) read(fd, &scrn, 4);
158 (void) lseek(fd, 4 + 2*(scrn.y*scrn.cols + scrn.x), 0);
159 (void) read(fd, &s, 2);
163 attrib = ((s & ~mask) >> 8);
164 printf("ch=\(aq%c\(aq attrib=0x%02x\\n", ch, attrib);
166 (void) lseek(fd, \-1, 1);
167 (void) write(fd, &attrib, 1);