NAME
ldattach - attach a line discipline to a serial lineSYNOPSIS
ldattach [-1278denoVh] [-i iflag] [-s speed] ldisc deviceDESCRIPTION
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.LINE DISCIPLINES
Depending on the kernel release, the following line disciplines are supported:The default line discipline, providing
transparent operation (raw mode) as well as the habitual terminal line editing
capabilities (cooked mode).
Serial Line IP (SLIP) protocol processor for
transmitting TCP/IP packets over serial lines.
Device driver for RS232 connected pointing
devices (serial mice).
Point to Point Protocol (PPP) processor for
transmitting network packets over serial lines.
Line driver for transmitting X.25 packets over
asynchronous serial lines.
Driver for Simatic R3964 module.
Linux IrDa (infrared data transmission) driver
- see <http://irda.sourceforge.net/>
Synchronous HDLC driver.
Synchronous PPP driver.
Bluetooth HCI UART driver.
Driver for Siemens Gigaset M101 serial DECT
adapter.
Driver for serial line Pulse Per Second (PPS)
source.
Driver for GSM 07.10 multiplexing protocol
modem (CMUX).
OPTIONS
-1, --onestopbitSet the number of stop bits of the serial line
to one.
Set the number of stop bits of the serial line
to two.
Set the character size of the serial line to 7
bits.
Set the character size of the serial line to 8
bits.
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.
Set the parity of the serial line to
even.
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.
Set the parity of the serial line to
none.
Set the parity of the serial line to
odd.
Set the speed (the baud rate) of the serial
line to the specified value.
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.
Sleep for value seconds before the
invocation of ldattach. Default is one second.
Display help text and exit.
Print version and exit.
AUTHORS
Tilman <[email protected]>SchmidtSEE ALSO
inputattach(1), ttys(4)REPORTING BUGS
For bug reports, use the issue tracker at <https://github.com/util-linux/util-linux/issues>.AVAILABILITY
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/>.2022-05-11 | util-linux 2.38.1 |