USLSA(4) Kernel Interfaces Manual USLSA(4)
NAME
uslsaUSB 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 NetBSD 4.0.
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.