Talkback for article: 223, November2001

How to use your ATEN UC-232A USB adapter with Linux

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From: Richard Hegg <richardhegg(at)> [ date: 2001-11-02 ]
Nice article! In "Funkamateur 11.01" is a description of the chip used in ATEN UC-232A (FT232AM) with more hardware details.
On the webside of the producer "" is also more information and software available.

From: Bryan J. Smith <b.j.smith(at)> [ date: 2001-11-03 ]
Great. Any details on what it does and doesn't support? Most of the docs I have read traditional UART capabilities of USB-to-serial devices are quite limited -- and probably won't work with serial devices that require the lesser used ones.

E.g., many of us need an USB-to-serial converter that can work with an external modem. Not just because we are "old fashioned," but because we have a wireless phone that can also act as a 14.4Kbaud modem (e.g., Kyrocera SmartPhone). With many systems now shipping legacy-free (e.g., my Toshiba 2805-S402 notebook, which
has everything _but_ serial), we're looking for an USB-to-serial converter that _completely_supports_ _all_ UART functionality.

Until then, I'm stuck with a nasty (and expensive) serial PCMCIA card as my only option.

From: Bruno Cochofel <b_cochofel(at)> [ date: 2002-03-17 ]
I want to know if, with the UC-232A on linux i can program to the serial port using all the "termios" options. Also if this is possible, how do i open the serial port? "ttySx" or "ttyUSBx". I've compile the kernel, do a

modprobe usb-uhci
mount -t usbdevfs none /proc/bus/usb
modprobe pl2303

but how can i know if the driver is well?

I'm used to do a loopback test, (short circuit between RxD and Txd, pin 2 and 3 of the serial port), in hyper terminal - windows, with the serial port, just to check if the serial is ok, can i do this in linux? How?

Please help, i need to program to the serial port on linux, and all i've is a compaq presario 700, with no serial, and the ATEN UC-232A...
From: Carlos Pereira <carlos.pereira(at)> [ date: 2002-12-03 ]

I get the drivers for PL2303 on Prolific Web Site but I'm not able to compile it. I'm getting a lot of errors during compilation.

There is another place where I can get the latest drivers or the compiled modules?


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