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Man Pages
UARK(4) FreeBSD Kernel Interfaces Manual UARK(4)

uark —
Arkmicro Technologies ARK3116 based USB serial adapter

To compile this driver into the kernel, place the following lines in your kernel configuration file:
device usb
device ucom
device uark

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

uark_load="YES"

The uark driver supports Arkmicro Technologies ARK3116 based serial adapters.

The uark driver supports the following adapters:

  • HL USB-RS232
  • HugePine USB-UART
  • KQ-U8A Data Cable
  • Skymaster USB to RS232

/dev/ttyU*
for callin ports
/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

tty(4), ucom(4), usb(4)

The uark device driver first appeared in OpenBSD 4.0. The first FreeBSD release to include it was FreeBSD 7.0.

The uark driver was written by Jonathan Gray <jsg@openbsd.org>.

Setting hardware flow control is not currently supported. It is not yet known how to ask the hardware to send a break.

Arkmicro Technologies do not reply to requests of documentation for their products.

April 26, 2017 FreeBSD 13.1-RELEASE
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