May 12, 2006 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:

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

### 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)

```http://www.silabs.com`.

### HISTORY

The uslsa driver appeared in NetBSD4.0.

### AUTHORS

The uslsa driver was written by Jonathan A. Kollasch
. Code and style was borrowed from existing NetBSD USB-serial drivers. Due to the unavailability of documentation, Craig Shelley's reverse-engineered Linux driver was used as documentation.

### CAVEATS

Hardware flow control may not work correctly.

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