DragonFly On-Line Manual Pages

Search: Section:  


UMCS(4)               DragonFly 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 usb device ucom 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)

HISTORY

The umcs driver appeared in ports since December of 2010.

AUTHORS

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

BUGS

This driver doesn't support access to any fine tunes of chip, like RS522/RS485 mode, non-standard baudrates, etc. DragonFly 3.7 February 25, 2012 DragonFly 3.7

Search: Section: