USLSA(4) | Device Drivers Manual | USLSA(4)

# NAME

`uslsa` —
USB support for Silicon Labs CP210x series serial adapters

# SYNOPSIS

`uslsa* at uhub?`
`ucom* at uslsa?`

# HARDWARE

The `uslsa` driver is known to work with the following adapters:

Adafruit 954 USB to TTL Serial Cable
Helicomm IP-Link 1220-DVM
Nokia CA-42 USB
Siemens MC60 Data Cable
Suunto USB Serial Adaptor

# DESCRIPTION

The `uslsa` driver provides support for the Silicon Labs USB-to-RS-232 Bridge chip.

The device is accessed through the ucom(4) driver which makes it behave like a tty(4).

# SEE ALSO

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

Silicon Laboratories.

Silicon Laboratories AN571: CP210x Virtual COM Port Interface..

# HISTORY

The `uslsa` driver appeared in NetBSD 4.0.

# AUTHORS

The `uslsa` driver was written by Jonathan A. Kollasch. Code and style was borrowed from existing NetBSD USB-serial drivers.

# CAVEATS

Settings other than 8 data bits, no parity, and 1 stop bit seem to be refused by the CP2101.

January 27, 2019 | NetBSD 9.5