usb to serial

Vivek Khera vivek at
Wed May 3 14:00:47 UTC 2006

On May 3, 2006, at 8:33 AM, David Coder wrote:

> Is there a generic freebsd driver for usb-to-rs-232 adapters?  My  
> Thinkpad
> (running 6.1-RC) doesn't have a standard db-9 port.

I bought a generic one from BestBuy which works with the uplcom  
driver (I just load it from loader.conf).  I have an older one I  
bought there a year ago that also works with the driver, but only  
reliably up to 38400 baud.  That could be due to the system to which  
it is connected, though.  The new one seems safe up to 115200.

They show up as device /dev/cuaU0 in FreeBSD 6+.  They both probe as:

ucom0: Prolific Technology Inc. USB-Serial Controller, rev 1.10/3.00,  
addr 2

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