diff options
Diffstat (limited to 'man2/ioctl_console.2')
| -rw-r--r-- | man2/ioctl_console.2 | 34 |
1 files changed, 23 insertions, 11 deletions
diff --git a/man2/ioctl_console.2 b/man2/ioctl_console.2 index 455be75..f06725f 100644 --- a/man2/ioctl_console.2 +++ b/man2/ioctl_console.2 @@ -19,14 +19,14 @@ .\" VT_UNLOCKSWITCH (since Linux 1.3.47, needs CAP_SYS_TTY_CONFIG) .\" VT_GETHIFONTMASK (since Linux 2.6.18) .\" -.TH ioctl_console 2 2023-01-22 "Linux man-pages 6.05.01" +.TH ioctl_console 2 2024-03-03 "Linux man-pages 6.7" .SH NAME ioctl_console \- ioctls for console terminal and virtual consoles .SH DESCRIPTION The following Linux-specific .BR ioctl (2) -requests are supported for console terminals and virtual consoles. -Each requires a third argument, assumed here to be +operations are supported for console terminals and virtual consoles. +Each operation requires a third argument, assumed here to be .IR argp . .TP .B KDGETLED @@ -53,7 +53,7 @@ unsigned long integer in However, if a higher order bit is set, the LEDs revert to normal: displaying the state of the keyboard functions of caps lock, num lock, and scroll lock. -.PP +.P Before Linux 1.1.54, the LEDs just reflected the state of the corresponding keyboard flags, and KDGETLED/KDSETLED would also change the keyboard flags. @@ -546,7 +546,7 @@ points to a struct vt_mode { char mode; /* vt mode */ char waitv; /* if set, hang on writes if not active */ - short relsig; /* signal to raise on release req */ + short relsig; /* signal to raise on release op */ short acqsig; /* signal to raise on acquisition */ short frsig; /* unused (set to 0) */ }; @@ -657,7 +657,7 @@ Note that this does not change the videomode. See .BR resizecons (8). (Since Linux 1.3.3.) -.PP +.P The action of the following ioctls depends on the first byte in the struct pointed to by .IR argp , @@ -715,12 +715,20 @@ is 0 for character-by-character selection, or 2 for line-by-line selection. The indicated screen characters are highlighted and saved in a kernel buffer. +.IP +Since Linux 6.7, using this subcode requires the +.B CAP_SYS_ADMIN +capability. .TP .BR TIOCLINUX ", " subcode = TIOCL_PASTESEL Paste selection. The characters in the selection buffer are written to .IR fd . +.IP +Since Linux 6.7, using this subcode requires the +.B CAP_SYS_ADMIN +capability. .TP .BR TIOCLINUX ", " subcode = TIOCL_UNBLANKSCREEN Unblank the screen. @@ -729,6 +737,10 @@ Unblank the screen. Sets contents of a 256-bit look up table defining characters in a "word", for word-by-word selection. (Since Linux 1.1.32.) +.IP +Since Linux 6.7, using this subcode requires the +.B CAP_SYS_ADMIN +capability. .TP .BR TIOCLINUX ", " subcode = TIOCL_GETSHIFTSTATE .I argp @@ -849,7 +861,7 @@ is invalid. .TP .B ENOTTY The file descriptor is not associated with a character special device, -or the specified request does not apply to it. +or the specified operation does not apply to it. .TP .B EPERM Insufficient permission. @@ -864,16 +876,16 @@ without warning. situation as of kernel version 1.1.94; there are many minor and not-so-minor differences with earlier versions.) -.PP +.P Very often, ioctls are introduced for communication between the kernel and one particular well-known program (fdisk, hdparm, setserial, tunelp, loadkeys, selection, setfont, etc.), and their behavior will be changed when required by this particular program. -.PP +.P Programs using these ioctls will not be portable to other versions of UNIX, will not work on older versions of Linux, and will not work on future versions of Linux. -.PP +.P Use POSIX functions. .SH SEE ALSO .BR dumpkeys (1), @@ -898,6 +910,6 @@ Use POSIX functions. .BR mapscrn (8), .BR resizecons (8), .BR setfont (8) -.PP +.P .IR /usr/include/linux/kd.h , .I /usr/include/linux/vt.h |