---
name: "uslcom"
section: "4"
platform: "openbsd"
package: "man"
version: "8.0-current-20261101"
release: "OpenBSD 8.0-current (2026-11-01)"
platforms: ["freebsd", "openbsd"]
url: "https://new.carta.tech/uslcom"
---

# uslcom(4)

Silicon Laboratories CP210x based USB serial adapter

## NAME

**uslcom** – Silicon Laboratories CP210x based USB serial adapter

## SYNOPSIS

**uslcom\* at uhub?** **ucom\* at uslcom?**

## DESCRIPTION

The **uslcom** driver supports Silicon Laboratories CP2101/CP2102/CP2103/CP2104/CP2105/CP2108 based serial adapters.

The CP2101/CP2102/CP2103 devices only support a variety of baud rates up to 921600. CP2104, CP2105 and CP2108 devices support any baud rate up to 2 Mbps.

The following devices should work with the **uslcom** driver:

```
Aerocomm Radio
Argussoft ISP
Aruba Networks USB-to-UART
Baltech card reader
Burnside Telecom Desktop Mobile
chip45.com Crumb128 module
Clipsal 5500PCU C-Bus
Dynastream ANT2USB
Elan Digital Systems USBscope50
Elan Digital Systems USBwave12
Elan Digital Systems USBpulse100
Elan Digital Systems USBcount50
Enfora EDG1228
Gemalto Prox-PU/CU Smartcard Readers
IRZ MC35pu GSM Terminal
Jablotron PC-60B
Juniper SRX 300/320/340/345/550M/1500 USB console
Lipowsky Baby-JTAG
Lipowsky Baby-LIN
Lipowsky HARP-1
MobiData GPRS Modem
Pololu USB to Serial
Ruckus ICX 7150 USB console
SPORTident BSM7-D-USB
Tracient RFID
Track Systems Traqmate
West Mountain Radio RIGblaster P&P
West Mountain Radio RIGtalk
```

## SEE ALSO

[tty(4)](/tty/4.md), [ucom(4)](/ucom/4.md), uhub(4), [usb(4)](/usb/4.md)

## HISTORY

The **uslcom** device driver first appeared in OpenBSD 4.0.

## AUTHORS

The **uslcom** driver was written by Jonathan Gray ⟨*jsg@openbsd.org*⟩.