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:
Tilman Schmidt (firstname.lastname@example.org)
The ldattach command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/.