/dev/ttyU*.*
for callin ports
umcs4freebsd
Usb support for serial adapters based on the mcs7820 and mcs7840 chips
Usage
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"
Overview
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:
-
ST Lab U-360 two-port serial USB adapter
-
ST Lab U-400 four-port serial USB adapter
Files
-
-
/dev/ttyU*.*.init -
/dev/ttyU*.*.lock -
corresponding callin initial-state and lock-state devices
-
/dev/cuaU*.* -
for callout ports
-
/dev/cuaU*.*.init -
/dev/cuaU*.*.lock -
corresponding callout initial-state and lock-state devices
Releases
6 releases since Debian 8 (Jessie); the text changed 3 times.