uxrcom
—
Exar XR21V141x USB serial adapter
uxrcom* at uhub?
ucom* at uxrcom?
The uxrcom
driver supports serial adapters based on the
XR21V1410, XR21V1412 and XR21V1414 chipsets. Devices range from single port to
eight port (implemented as a USB hub and two uxrcom
four port instances behind it). Examples of hardware known to work with this
driver are:
- Gearmo GM-U28RS232 8 Port USB to Serial DB9 RS232 Adapter
-
The uxrcom
driver attaches the Exar XR21V141x multiport
chipset with individual port drivers via
ucom(4), which makes it behave
like a tty(4).
The uxrcom
device driver first appeared in
OpenBSD 6.5 and in NetBSD 9.1.
The uxrcom
driver for the single port XR21V1410 was
written by Mark Kettenis
<kettenis@openbsd.org>.
The multi-port NetBSD driver is based on the
OpenBSD driver but uses the common
umodem(4) framework. The
NetBSD driver was written by by Simon
Burge ⟨simonb@netbsd.org⟩.