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NAME | SYNOPSIS | DESCRIPTION | LINE DISCIPLINES | OPTIONS | AUTHORS | SEE ALSO | REPORTING BUGS | AVAILABILITY |
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LDATTACH(8) System Administration LDATTACH(8)
ldattach - attach a line discipline to a serial line
ldattach [-1278denoVh] [-i iflag] [-s speed] ldisc device
The ldattach daemon opens the specified device file (which should
refer to a serial device) and attaches the line discipline ldisc
to it for processing of the sent and/or received data. It then
goes into the background keeping the device open so that the line
discipline stays loaded.
The line discipline ldisc may be specified either by name or by
number.
In order to detach the line discipline, kill(1) the ldattach
process.
With no arguments, ldattach prints usage information.
Depending on the kernel release, the following line disciplines
are supported:
TTY(0)
The default line discipline, providing transparent operation
(raw mode) as well as the habitual terminal line editing
capabilities (cooked mode).
SLIP(1)
Serial Line IP (SLIP) protocol processor for transmitting
TCP/IP packets over serial lines.
MOUSE(2)
Device driver for RS232 connected pointing devices (serial
mice).
PPP(3)
Point to Point Protocol (PPP) processor for transmitting
network packets over serial lines.
STRIP(4); AX25(5); X25(6)
Line driver for transmitting X.25 packets over asynchronous
serial lines.
6PACK(7); R3964(9)
Driver for Simatic R3964 module.
IRDA(11)
Linux IrDa (infrared data transmission) driver - see
http://irda.sourceforge.net/
HDLC(13)
Synchronous HDLC driver.
SYNC_PPP(14)
Synchronous PPP driver.
HCI(15)
Bluetooth HCI UART driver.
GIGASET_M101(16)
Driver for Siemens Gigaset M101 serial DECT adapter.
PPS(18)
Driver for serial line Pulse Per Second (PPS) source.
GSM0710(21)
Driver for GSM 07.10 multiplexing protocol modem (CMUX).
-1, --onestopbit
Set the number of stop bits of the serial line to one.
-2, --twostopbits
Set the number of stop bits of the serial line to two.
-7, --sevenbits
Set the character size of the serial line to 7 bits.
-8, --eightbits
Set the character size of the serial line to 8 bits.
-d, --debug
Keep ldattach in the foreground so that it can be interrupted
or debugged, and to print verbose messages about its progress
to standard error output.
-e, --evenparity
Set the parity of the serial line to even.
-i, --iflag value...
Set the specified bits in the c_iflag word of the serial
line. The given value may be a number or a symbolic name. If
value is prefixed by a minus sign, the specified bits are
cleared instead. Several comma-separated values may be given
in order to set and clear multiple bits.
-n, --noparity
Set the parity of the serial line to none.
-o, --oddparity
Set the parity of the serial line to odd.
-s, --speed value
Set the speed (the baud rate) of the serial line to the
specified value.
-c, --intro-command string
Define an intro command that is sent through the serial line
before the invocation of ldattach. E.g. in conjunction with
line discipline GSM0710, the command 'AT+CMUX=0\r' is
commonly suitable to switch the modem into the CMUX mode.
-p, --pause value
Sleep for value seconds before the invocation of ldattach.
Default is one second.
-h, --help
Display help text and exit.
-V, --version
Print version and exit.
Tilman Schmidt <tilman@imap.cc>
inputattach(1), ttys(4)
For bug reports, use the issue tracker at
https://github.com/util-linux/util-linux/issues.
The ldattach command is part of the util-linux package which can
be downloaded from Linux Kernel Archive
<https://www.kernel.org/pub/linux/utils/util-linux/>. This page
is part of the util-linux (a random collection of Linux
utilities) project. Information about the project can be found at
⟨https://www.kernel.org/pub/linux/utils/util-linux/⟩. If you have
a bug report for this manual page, send it to
util-linux@vger.kernel.org. This page was obtained from the
project's upstream Git repository
⟨git://git.kernel.org/pub/scm/utils/util-linux/util-linux.git⟩ on
2024-06-14. (At that time, the date of the most recent commit
that was found in the repository was 2024-06-10.) If you discover
any rendering problems in this HTML version of the page, or you
believe there is a better or more up-to-date source for the page,
or you have corrections or improvements to the information in
this COLOPHON (which is not part of the original manual page),
send a mail to man-pages@man7.org
util-linux 2.39.594-1e0ad 2023-07-19 LDATTACH(8)
Pages that refer to this page: ioctl_tty(2)
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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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