diff options
Diffstat (limited to 'man4/vcs.4')
| -rw-r--r-- | man4/vcs.4 | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/man4/vcs.4 b/man4/vcs.4 index 0bd5f4017f..49d58f06f5 100644 --- a/man4/vcs.4 +++ b/man4/vcs.4 @@ -55,7 +55,7 @@ dimensions and cursor position: = .I y = 0 at the top left corner of the screen.) - +.PP When a 512-character font is loaded, the 9th bit position can be fetched by applying the .BR ioctl (2) @@ -78,7 +78,7 @@ so the system administrator can control access using filesystem permissions. .PP The devices for the first eight virtual consoles may be created by: - +.PP .nf for x in 0 1 2 3 4 5 6 7 8; do mknod \-m 644 /dev/vcs$x c 7 $x; @@ -86,7 +86,7 @@ The devices for the first eight virtual consoles may be created by: done chown root:tty /dev/vcs* .fi - +.PP No .BR ioctl (2) requests are supported. @@ -100,27 +100,27 @@ requests are supported. Introduced with version 1.1.92 of the Linux kernel. .SH EXAMPLE You may do a screendump on vt3 by switching to vt1 and typing - +.PP cat /dev/vcs3 >foo - +.PP Note that the output does not contain newline characters, so some processing may be required, like in - +.PP fold \-w 81 /dev/vcs3 | lpr - +.PP or (horrors) - +.PP xetterm \-dump 3 \-file /proc/self/fd/1 - +.PP The .I /dev/vcsa0 device is used for Braille support. - +.PP This program displays the character and screen attributes under the cursor of the second virtual console, then changes the background color there: - +.PP .nf #include <unistd.h> #include <stdlib.h> |