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UXRCOM(4) Device Drivers Manual UXRCOM(4) NAME uxrcom - Exar XR21V141x USB serial adapter SYNOPSIS uxrcom* at uhub? ucom* at uxrcom? HARDWARE 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 DESCRIPTION The uxrcom driver attaches the Exar XR21V141x multiport chipset with individual port drivers via ucom(4), which makes it behave like a tty(4). SEE ALSO tty(4), ucom(4), uhub(4), umodem(4), usb(4) HISTORY The uxrcom device driver first appeared in OpenBSD 6.5 and in NetBSD 9.1. AUTHORS 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>. NetBSD 9.99 April 12, 2020 NetBSD 9.99