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UMCS(4) Device Drivers Manual UMCS(4)

umcsUSB multiport serial adapters driver

umcs* at uhub?
ucom* at umcs?

The umcs driver supports a wide variety of hardware based on the MosChip 7810, 7820, 7840 chipsets and clones thereof. Devices range from single port to eight port (implemented as a USB hub and two umcs four port instances behind it).

Examples of hardware known to work with this driver are:

LOGILINK AU0033
 

The umcs driver attaches the MosChip multiport chipset with individual port drivers via ucom(4), which makes it behave like a tty(4).

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

The umcs driver appeared in NetBSD 7.

May 7, 2019 NetBSD-9.2