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UMCS(4)		       FreeBSD Kernel Interfaces Manual		       UMCS(4)

NAME
     umcs -- USB support for serial adapters based on the MCS7820 and MCS7840
     chips

SYNOPSIS
     To	compile	this driver into the kernel, place the following lines in your
     kernel configuration file:

	   device umcs

     Alternatively, to load the	driver as a module at boot time, place the
     following line in loader.conf(5):

	   umcs_load="YES"

DESCRIPTION
     The umcs driver provides support for various multiport serial adapters
     based on the MosCom MCS7820 and MCS7840 chips.  They are 2- or 4-port
     adapters with full-featured 16550-compatible UARTs	and very flexible baud
     generators.  Also,	these chips support RS422/RS485	and IrDA operations.

     The device	is accessed through the	ucom(4)	driver which makes it behave
     like a tty(4).

     Different ports on	device are presented as	sub-units, like	/dev/ttyU0.1
     and /dev/ttyU0.2.

HARDWARE
     The umcs driver was tested	on the following adapters:

     +o	 ST Lab	U-360 two-port serial USB adapter
     +o	 ST Lab	U-400 four-port	serial USB adapter

SEE ALSO
     tty(4), ucom(4), usb(4)

BUGS
     This driver doesn't support access	to any fine tunes of chip, like
     RS522/RS485 mode, non-standard baudrates, etc.

HISTORY
     The umcs driver appeared in ports since December of 2010.

AUTHORS
     The umcs driver was written by Lev	Serebryakov <lev@FreeBSD.org>.

FreeBSD	9.2		       February	25, 2012		   FreeBSD 9.2

NAME | SYNOPSIS | DESCRIPTION | HARDWARE | SEE ALSO | BUGS | HISTORY | AUTHORS

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