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UCHCOM(4) Device Drivers Manual UCHCOM(4)

uchcomWinChipHead CH9102/343/341/340 based USB serial adapter

uchcom* at uhub?
ucom* at uchcom?

The uchcom driver supports WinChipHead CH9102/343/341/340 serial devices.

The CH341/340 devices only support a variety of baud rates up to 921600. CH9102/343 devices support any baud rate up to 6 Mbps.

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

The uchcom device driver first appeared in OpenBSD 4.3.

The uchcom driver was written by Takuya SHIOZAKI <> and ported to OpenBSD by Jonathan Gray <>.

May 15, 2024 OpenBSD-current