On Mon, Sep 28, 2009 at 5:43 PM, - <[email protected]> wrote:
> Hello,
>
> I'm trying to access barcodes scanned and saved in a scanner's flash
> memory. The scanner, Opticon's OPN 2001, connects via a USB cable
> (which rather niftily also charges its battery), but the interface is
> actually serial rather than "native" USB. Opticon scanners seem to be
> supported as of Linux kernel 2.6.29
> (http://kernelnewbies.org/Linux_2_6_29) , as in the usbserial module
> is loaded and prints:

I have never done what you are trying to do but I have heard numerous
times that barcode readers simply emulate a keyboard and spit out
keyboard sequences very much like a serial device on USB...

> [  196.495094] USB Serial support registered for opticon
> [  196.495135] opticon 4-1:1.0: opticon converter detected
> [  196.495529] usb 4-1: opticon converter now attached to ttyUSB0
> [  196.495557] usbcore: registered new interface driver opticon

If you have got so far then wouldn't it work?

Did you see the sources of the opticon driver?

> lsusb gives:
>
> Bus 004 Device 002: ID 065a:0009 Optoelectronics Co., Ltd

Grep for this device ID and vendor ID combo in your linux kernel tree.

> How do I access the scanned data? Presumably, an application has to
> use /dev/ttyUSB0 to do so. Are there generic Linux apps. which will do
> so?

The driver is attached, so you would have to test using /dev/event*
interface or some such for testing.

A generic serial communication program like minicom or cu should be
able to communicate with your barcode reader.

Just point the serial port device to /dev/ttyUSB0. I am applying
logic here. Never been there, never done that...

> Googling has not yielded results beyond the kernel version. As I have
> only used the serial port for modems, I'm unsure how to proceed.

It is the same thing I suppose.

I have done my best. Let better hackers help you.

Best of luck.

-Girish
> Sameer

This name should have been in your e-mail ID but well.

-- 
Gayatri Hitech
web: http://gayatri-hitech.com

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