ubsa(4)

ubsa4

Belkin usb serial adapter

Usage

ubsa* at uhub? ucom* at ubsa?

Overview

The ubsa driver provides support for the USB-to-RS232 Bridge chip used by a variety of serial adapters from Belkin and other vendors.

Some 3G (UMTS/GPRS/GSM) cardbus(4) devices use a Belkin serial adapter and an ohci(4) controller to provide a common AT interface.

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

Hardware

The ubsa driver supports the following adapters:

Axesstel MV100H
Belkin F5U103
Belkin F5U120
e-Tek Labs Kwik232
GoHubs GoCOM232
Peracom single port serial adapter
Qualcomm, Inc. ZTE AC8700
Qualcomm, Inc. ZTE CDMA Technologies MSM

Releases

49 releases since OpenBSD 3.3; the text changed 7 times.

  1. 3.3–3.6
  2. 3.7–3.9
  3. 4.0
  4. 4.1
  5. 4.2
  6. 4.3
  7. 4.4
  8. 4.5–8.0

History

The ubsa driver first appeared in FreeBSD 5.0 and was ported to OpenBSD 3.3.

From man 8.0-current-20261101 in OpenBSD 8.0-current (2026-11-01). Parsed by carta from the page's mdoc source.