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diff --git a/man2/ioctl_console.2 b/man2/ioctl_console.2 deleted file mode 100644 index 93a992264..000000000 --- a/man2/ioctl_console.2 +++ /dev/null @@ -1,915 +0,0 @@ -'\" t -.\" Copyright (c) 1995 Jim Van Zandt <jrv@vanzandt.mv.com> and aeb -.\" Sun Feb 26 11:46:23 MET 1995 -.\" -.\" SPDX-License-Identifier: GPL-2.0-or-later -.\" -.\" Modified, Sun Feb 26 15:04:20 1995, faith@cs.unc.edu -.\" Modified, Thu Apr 20 22:08:17 1995, jrv@vanzandt.mv.com -.\" Modified, Mon Sep 18 22:32:47 1995, hpa@storm.net (H. Peter Anvin) -.\" FIXME The following are not documented: -.\" KDFONTOP (since Linux 2.1.111) -.\" KDGKBDIACRUC (since Linux 2.6.24) -.\" KDSKBDIACR -.\" KDSKBDIACRUC (since Linux 2.6.24) -.\" KDKBDREP (since Linux 2.1.113) -.\" KDMAPDISP (not implemented as at Linux 2.6.27) -.\" KDUNMAPDISP (not implemented as at Linux 2.6.27) -.\" VT_LOCKSWITCH (since Linux 1.3.47, needs CAP_SYS_TTY_CONFIG) -.\" VT_UNLOCKSWITCH (since Linux 1.3.47, needs CAP_SYS_TTY_CONFIG) -.\" VT_GETHIFONTMASK (since Linux 2.6.18) -.\" -.TH ioctl_console 2 (date) "Linux man-pages (unreleased)" -.SH NAME -ioctl_console \- ioctls for console terminal and virtual consoles -.SH DESCRIPTION -The following Linux-specific -.BR ioctl (2) -operations are supported for console terminals and virtual consoles. -Each operation requires a third argument, assumed here to be -.IR argp . -.TP -.B KDGETLED -Get state of LEDs. -.I argp -points to a -.IR char . -The lower three bits -of -.I *argp -are set to the state of the LEDs, as follows: -.TS -l l l. -LED_CAP 0x04 caps lock led -LED_NUM 0x02 num lock led -LED_SCR 0x01 scroll lock led -.TE -.TP -.B KDSETLED -Set the LEDs. -The LEDs are set to correspond to the lower three bits of the -unsigned long integer in -.IR argp . -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. -.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. -Since Linux 1.1.54 the LEDs can be made to display arbitrary -information, but by default they display the keyboard flags. -The following two ioctls are used to access the keyboard flags. -.TP -.B KDGKBLED -Get keyboard flags CapsLock, NumLock, ScrollLock (not lights). -.I argp -points to a char which is set to the flag state. -The low order three bits (mask 0x7) get the current flag state, -and the low order bits of the next nibble (mask 0x70) get -the default flag state. -(Since Linux 1.1.54.) -.TP -.B KDSKBLED -Set keyboard flags CapsLock, NumLock, ScrollLock (not lights). -.I argp -is an unsigned long integer that has the desired flag state. -The low order three bits (mask 0x7) have the flag state, -and the low order bits of the next nibble (mask 0x70) have -the default flag state. -(Since Linux 1.1.54.) -.TP -.B KDGKBTYPE -Get keyboard type. -This returns the value KB_101, defined as 0x02. -.TP -.B KDADDIO -Add I/O port as valid. -Equivalent to -.IR ioperm(arg,1,1) . -.TP -.B KDDELIO -Delete I/O port as valid. -Equivalent to -.IR ioperm(arg,1,0) . -.TP -.B KDENABIO -Enable I/O to video board. -Equivalent to -.IR "ioperm(0x3b4, 0x3df\-0x3b4+1, 1)" . -.TP -.B KDDISABIO -Disable I/O to video board. -Equivalent to -.IR "ioperm(0x3b4, 0x3df\-0x3b4+1, 0)" . -.TP -.B KDSETMODE -Set text/graphics mode. -.I argp -is an unsigned integer containing one of: -.TS -l l. -KD_TEXT 0x00 -KD_GRAPHICS 0x01 -.TE -.TP -.B KDGETMODE -Get text/graphics mode. -.I argp -points to an -.I int -which is set to one -of the values shown above for -.BR KDSETMODE . -.TP -.B KDMKTONE -Generate tone of specified length. -The lower 16 bits of the unsigned long integer in -.I argp -specify the period in clock cycles, -and the upper 16 bits give the duration in msec. -If the duration is zero, the sound is turned off. -Control returns immediately. -For example, -.I argp -= (125<<16) + 0x637 would specify -the beep normally associated with a ctrl-G. -(Thus since Linux 0.99pl1; broken in Linux 2.1.49-50.) -.TP -.B KIOCSOUND -Start or stop sound generation. -The lower 16 bits of -.I argp -specify the period in clock cycles -(that is, -.I argp -= 1193180/frequency). -.I argp -= 0 turns sound off. -In either case, control returns immediately. -.TP -.B GIO_CMAP -Get the current default color map from kernel. -.I argp -points to -a 48-byte array. -(Since Linux 1.3.3.) -.TP -.B PIO_CMAP -Change the default text-mode color map. -.I argp -points to a -48-byte array which contains, in order, the Red, Green, and Blue -values for the 16 available screen colors: 0 is off, and 255 is full -intensity. -The default colors are, in order: black, dark red, dark -green, brown, dark blue, dark purple, dark cyan, light grey, dark -grey, bright red, bright green, yellow, bright blue, bright purple, -bright cyan, and white. -(Since Linux 1.3.3.) -.TP -.B GIO_FONT -Gets 256-character screen font in expanded form. -.I argp -points to an 8192-byte array. -Fails with error code -.B EINVAL -if the -currently loaded font is a 512-character font, or if the console is -not in text mode. -.TP -.B GIO_FONTX -Gets screen font and associated information. -.I argp -points to a -.I "struct consolefontdesc" -(see -.BR PIO_FONTX ). -On call, the -.I charcount -field should be set to the maximum number of -characters that would fit in the buffer pointed to by -.IR chardata . -On return, the -.I charcount -and -.I charheight -are filled with -the respective data for the currently loaded font, and the -.I chardata -array contains the font data if the initial value of -.I charcount -indicated enough space was available; otherwise the -buffer is untouched and -.I errno -is set to -.BR ENOMEM . -(Since Linux 1.3.1.) -.TP -.B PIO_FONT -Sets 256-character screen font. -Load font into the EGA/VGA character -generator. -.I argp -points to an 8192-byte map, with 32 bytes per -character. -Only the first -.I N -of them are used for an 8x\fIN\fP font -(0 < -.I N -<= 32). -This call also invalidates the Unicode mapping. -.TP -.B PIO_FONTX -Sets screen font and associated rendering information. -.I argp -points to a -.IP -.in +4n -.EX -struct consolefontdesc { - unsigned short charcount; /* characters in font - (256 or 512) */ - unsigned short charheight; /* scan lines per - character (1\-32) */ - char *chardata; /* font data in - expanded form */ -}; -.EE -.in -.IP -If necessary, the screen will be appropriately resized, and -.B SIGWINCH -sent to the appropriate processes. -This call also invalidates the Unicode mapping. -(Since Linux 1.3.1.) -.TP -.B PIO_FONTRESET -Resets the screen font, size, and Unicode mapping to the bootup -defaults. -.I argp -is unused, but should be set to NULL to -ensure compatibility with future versions of Linux. -(Since Linux 1.3.28.) -.TP -.B GIO_SCRNMAP -Get screen mapping from kernel. -.I argp -points to an area of size -E_TABSZ, which is loaded with the font positions used to display each -character. -This call is likely to return useless information if the -currently loaded font is more than 256 characters. -.TP -.B GIO_UNISCRNMAP -Get full Unicode screen mapping from kernel. -.I argp -points to an -area of size -.IR "E_TABSZ*sizeof(unsigned short)" , -which is loaded with the -Unicodes each character represent. -A special set of Unicodes, -starting at U+F000, are used to represent "direct to font" mappings. -(Since Linux 1.3.1.) -.TP -.B PIO_SCRNMAP -Loads the "user definable" (fourth) table in the kernel which maps -bytes into console screen symbols. -.I argp -points to an area of -size E_TABSZ. -.TP -.B PIO_UNISCRNMAP -Loads the "user definable" (fourth) table in the kernel which maps -bytes into Unicodes, which are then translated into screen symbols -according to the currently loaded Unicode-to-font map. -Special Unicodes starting at U+F000 can be used to map directly to the font -symbols. -(Since Linux 1.3.1.) -.TP -.B GIO_UNIMAP -Get Unicode-to-font mapping from kernel. -.I argp -points to a -.IP -.in +4n -.EX -struct unimapdesc { - unsigned short entry_ct; - struct unipair *entries; -}; -.EE -.in -.IP -where -.I entries -points to an array of -.IP -.in +4n -.EX -struct unipair { - unsigned short unicode; - unsigned short fontpos; -}; -.EE -.in -.IP -(Since Linux 1.1.92.) -.TP -.B PIO_UNIMAP -Put unicode-to-font mapping in kernel. -.I argp -points to a -.IR "struct unimapdesc" . -(Since Linux 1.1.92) -.TP -.B PIO_UNIMAPCLR -Clear table, possibly advise hash algorithm. -.I argp -points to a -.IP -.in +4n -.EX -struct unimapinit { - unsigned short advised_hashsize; /* 0 if no opinion */ - unsigned short advised_hashstep; /* 0 if no opinion */ - unsigned short advised_hashlevel; /* 0 if no opinion */ -}; -.EE -.in -.IP -(Since Linux 1.1.92.) -.TP -.B KDGKBMODE -Gets current keyboard mode. -.I argp -points to a -.I long -which is set to one -of these: -.TS -l l. -K_RAW 0x00 /* Raw (scancode) mode */ -K_XLATE 0x01 /* Translate keycodes using keymap */ -K_MEDIUMRAW 0x02 /* Medium raw (scancode) mode */ -K_UNICODE 0x03 /* Unicode mode */ -K_OFF 0x04 /* Disabled mode; since Linux 2.6.39 */ -.\" K_OFF: commit 9fc3de9c83565fcaa23df74c2fc414bb6e7efb0a -.TE -.TP -.B KDSKBMODE -Sets current keyboard mode. -.I argp -is a -.I long -equal to one of the values shown for -.BR KDGKBMODE . -.TP -.B KDGKBMETA -Gets meta key handling mode. -.I argp -points to a -.I long -which is -set to one of these: -.TS -l l l. -K_METABIT 0x03 set high order bit -K_ESCPREFIX 0x04 escape prefix -.TE -.TP -.B KDSKBMETA -Sets meta key handling mode. -.I argp -is a -.I long -equal to one of the values shown above for -.BR KDGKBMETA . -.TP -.B KDGKBENT -Gets one entry in key translation table (keycode to action code). -.I argp -points to a -.IP -.in +4n -.EX -struct kbentry { - unsigned char kb_table; - unsigned char kb_index; - unsigned short kb_value; -}; -.EE -.in -.IP -with the first two members filled in: -.I kb_table -selects the key table (0 <= -.I kb_table -< MAX_NR_KEYMAPS), -and -.I kb_index -is the keycode (0 <= -.I kb_index -< NR_KEYS). -.I kb_value -is set to the corresponding action code, -or K_HOLE if there is no such key, -or K_NOSUCHMAP if -.I kb_table -is invalid. -.TP -.B KDSKBENT -Sets one entry in translation table. -.I argp -points to a -.IR "struct kbentry" . -.TP -.B KDGKBSENT -Gets one function key string. -.I argp -points to a -.IP -.in +4n -.EX -struct kbsentry { - unsigned char kb_func; - unsigned char kb_string[512]; -}; -.EE -.in -.IP -.I kb_string -is set to the (null-terminated) string corresponding to -the -.IR kb_func th -function key action code. -.TP -.B KDSKBSENT -Sets one function key string entry. -.I argp -points to a -.IR "struct kbsentry" . -.TP -.B KDGKBDIACR -Read kernel accent table. -.I argp -points to a -.IP -.in +4n -.EX -struct kbdiacrs { - unsigned int kb_cnt; - struct kbdiacr kbdiacr[256]; -}; -.EE -.in -.IP -where -.I kb_cnt -is the number of entries in the array, each of which -is a -.IP -.in +4n -.EX -struct kbdiacr { - unsigned char diacr; - unsigned char base; - unsigned char result; -}; -.EE -.in -.TP -.B KDGETKEYCODE -Read kernel keycode table entry (scan code to keycode). -.I argp -points to a -.IP -.in +4n -.EX -struct kbkeycode { - unsigned int scancode; - unsigned int keycode; -}; -.EE -.in -.IP -.I keycode -is set to correspond to the given -.IR scancode . -(89 <= -.I scancode -<= 255 only. -For 1 <= -.I scancode -<= 88, -.IR keycode == scancode .) -(Since Linux 1.1.63.) -.TP -.B KDSETKEYCODE -Write kernel keycode table entry. -.I argp -points to a -.IR "struct kbkeycode" . -(Since Linux 1.1.63.) -.TP -.B KDSIGACCEPT -The calling process indicates its willingness to accept the signal -.I argp -when it is generated by pressing an appropriate key combination. -(1 <= -.I argp -<= NSIG). -(See -.IR spawn_console () -in -.IR linux/drivers/char/keyboard.c .) -.TP -.B VT_OPENQRY -Returns the first available (non-opened) console. -.I argp -points to an -.I int -which is set to the -number of the vt (1 <= -.I *argp -<= MAX_NR_CONSOLES). -.TP -.B VT_GETMODE -Get mode of active vt. -.I argp -points to a -.IP -.in +4n -.EX -struct vt_mode { - char mode; /* vt mode */ - char waitv; /* if set, hang on writes if not active */ - short relsig; /* signal to raise on release op */ - short acqsig; /* signal to raise on acquisition */ - short frsig; /* unused (set to 0) */ -}; -.EE -.in -.IP -which is set to the mode of the active vt. -.I mode -is set to one of these values: -.TS -l l. -VT_AUTO auto vt switching -VT_PROCESS process controls switching -VT_ACKACQ acknowledge switch -.TE -.TP -.B VT_SETMODE -Set mode of active vt. -.I argp -points to a -.IR "struct vt_mode" . -.TP -.B VT_GETSTATE -Get global vt state info. -.I argp -points to a -.IP -.in +4n -.EX -struct vt_stat { - unsigned short v_active; /* active vt */ - unsigned short v_signal; /* signal to send */ - unsigned short v_state; /* vt bit mask */ -}; -.EE -.in -.IP -For each vt in use, the corresponding bit in the -.I v_state -member is set. -(Linux 1.0 through Linux 1.1.92.) -.TP -.B VT_RELDISP -Release a display. -.TP -.B VT_ACTIVATE -Switch to vt -.I argp -(1 <= -.I argp -<= MAX_NR_CONSOLES). -.TP -.B VT_WAITACTIVE -Wait until vt -.I argp -has been activated. -.TP -.B VT_DISALLOCATE -Deallocate the memory associated with vt -.IR argp . -(Since Linux 1.1.54.) -.TP -.B VT_RESIZE -Set the kernel's idea of screensize. -.I argp -points to a -.IP -.in +4n -.EX -struct vt_sizes { - unsigned short v_rows; /* # rows */ - unsigned short v_cols; /* # columns */ - unsigned short v_scrollsize; /* no longer used */ -}; -.EE -.in -.IP -Note that this does not change the videomode. -See -.BR resizecons (8). -(Since Linux 1.1.54.) -.TP -.B VT_RESIZEX -Set the kernel's idea of various screen parameters. -.I argp -points to a -.IP -.in +4n -.EX -struct vt_consize { - unsigned short v_rows; /* number of rows */ - unsigned short v_cols; /* number of columns */ - unsigned short v_vlin; /* number of pixel rows - on screen */ - unsigned short v_clin; /* number of pixel rows - per character */ - unsigned short v_vcol; /* number of pixel columns - on screen */ - unsigned short v_ccol; /* number of pixel columns - per character */ -}; -.EE -.in -.IP -Any parameter may be set to zero, indicating "no change", but if -multiple parameters are set, they must be self-consistent. -Note that this does not change the videomode. -See -.BR resizecons (8). -(Since Linux 1.3.3.) -.P -The action of the following ioctls depends on the first byte in the struct -pointed to by -.IR argp , -referred to here as the -.IR subcode . -These are legal only for the superuser or the owner of the current terminal. -Symbolic -.IR subcode s -are available in -.I <linux/tiocl.h> -since -Linux 2.5.71. -.TP -.BR TIOCLINUX ", " subcode = 0 -Dump the screen. -Disappeared in Linux 1.1.92. -(With Linux 1.1.92 or later, read from -.I /dev/vcsN -or -.I /dev/vcsaN -instead.) -.TP -.BR TIOCLINUX ", " subcode = 1 -Get task information. -Disappeared in Linux 1.1.92. -.TP -.BR TIOCLINUX ", " subcode = TIOCL_SETSEL -Set selection. -.I argp -points to a -.IP -.in +4n -.EX -struct { - char subcode; - short xs, ys, xe, ye; - short sel_mode; -}; -.EE -.in -.IP -.I xs -and -.I ys -are the starting column and row. -.I xe -and -.I ye -are the ending -column and row. -(Upper left corner is row=column=1.) -.I sel_mode -is 0 for character-by-character selection, -1 for word-by-word 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. -.TP -.BR TIOCLINUX ", " subcode = TIOCL_SELLOADLUT -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 -points to a char which is set to the value of the kernel -variable -.IR shift_state . -(Since Linux 1.1.32.) -.TP -.BR TIOCLINUX ", " subcode = TIOCL_GETMOUSEREPORTING -.I argp -points to a char which is set to the value of the kernel -variable -.IR report_mouse . -(Since Linux 1.1.33.) -.TP -.BR TIOCLINUX ", " subcode = 8 -Dump screen width and height, cursor position, and all the -character-attribute pairs. -(Linux 1.1.67 through Linux 1.1.91 only. -With Linux 1.1.92 or later, read from -.I /dev/vcsa* -instead.) -.TP -.BR TIOCLINUX ", " subcode = 9 -Restore screen width and height, cursor position, and all the -character-attribute pairs. -(Linux 1.1.67 through Linux 1.1.91 only. -With Linux 1.1.92 or later, write to -.I /dev/vcsa* -instead.) -.TP -.BR TIOCLINUX ", " subcode = TIOCL_SETVESABLANK -Handles the Power Saving -feature of the new generation of monitors. -VESA screen blanking mode is set to -.IR argp[1] , -which governs what -screen blanking does: -.RS -.TP -.B 0 -Screen blanking is disabled. -.TP -.B 1 -The current video adapter -register settings are saved, then the controller is programmed to turn off -the vertical synchronization pulses. -This puts the monitor into "standby" mode. -If your monitor has an Off_Mode timer, then -it will eventually power down by itself. -.TP -.B 2 -The current settings are saved, then both the vertical and horizontal -synchronization pulses are turned off. -This puts the monitor into "off" mode. -If your monitor has no Off_Mode timer, -or if you want your monitor to power down immediately when the -blank_timer times out, then you choose this option. -.RI ( Caution: -Powering down frequently will damage the monitor.) -(Since Linux 1.1.76.) -.RE -.TP -.BR TIOCLINUX ", " subcode = TIOCL_SETKMSGREDIRECT -Change target of kernel messages ("console"): -by default, and if this is set to -.BR 0 , -messages are written to the currently active VT. -The VT to write to is a single byte following -.BR subcode . -(Since Linux 2.5.36.) -.TP -.BR TIOCLINUX ", " subcode = TIOCL_GETFGCONSOLE -Returns the number of VT currently in foreground. -(Since Linux 2.5.36.) -.TP -.BR TIOCLINUX ", " subcode = TIOCL_SCROLLCONSOLE -Scroll the foreground VT by the specified amount of -.I lines -down, -or half the screen if -.BR 0 . -.I lines -is *(((int32_t *)&subcode) + 1). -(Since Linux 2.5.67.) -.TP -.BR TIOCLINUX ", " subcode = TIOCL_BLANKSCREEN -Blank the foreground VT, ignoring "pokes" (typing): -can only be unblanked explicitly (by switching VTs, to text mode, etc.). -(Since Linux 2.5.71.) -.TP -.BR TIOCLINUX ", " subcode = TIOCL_BLANKEDSCREEN -Returns the number of VT currently blanked, -.B 0 -if none. -(Since Linux 2.5.71.) -.TP -.BR TIOCLINUX ", " subcode = 16 -Never used. -.TP -.BR TIOCLINUX ", " subcode = TIOCL_GETKMSGREDIRECT -Returns target of kernel messages. -(Since Linux 2.6.17.) -.SH RETURN VALUE -On success, 0 is returned (except where indicated). -On failure, \-1 is returned, and -.I errno -is set to indicate the error. -.SH ERRORS -.TP -.B EBADF -The file descriptor is invalid. -.TP -.B EINVAL -The file descriptor or -.I argp -is invalid. -.TP -.B ENOTTY -The file descriptor is not associated with a character special device, -or the specified operation does not apply to it. -.TP -.B EPERM -Insufficient permission. -.SH NOTES -.BR Warning : -Do not regard this man page as documentation of the Linux console ioctls. -This is provided for the curious only, as an alternative to reading the -source. -Ioctl's are undocumented Linux internals, liable to be changed -without warning. -(And indeed, this page more or less describes the -situation as of kernel version 1.1.94; -there are many minor and not-so-minor -differences with earlier versions.) -.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. -.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. -.P -Use POSIX functions. -.SH SEE ALSO -.BR dumpkeys (1), -.BR kbd_mode (1), -.BR loadkeys (1), -.BR mknod (1), -.BR setleds (1), -.BR setmetamode (1), -.BR execve (2), -.BR fcntl (2), -.BR ioctl_tty (2), -.BR ioperm (2), -.BR termios (3), -.BR console_codes (4), -.BR mt (4), -.BR sd (4), -.BR tty (4), -.BR ttyS (4), -.BR vcs (4), -.BR vcsa (4), -.BR charsets (7), -.BR mapscrn (8), -.BR resizecons (8), -.BR setfont (8) -.P -.IR /usr/include/linux/kd.h , -.I /usr/include/linux/vt.h |