CUECAT KERNEL DRIVER
The bad part, is that each scanner is assigned a unique serial number. Comparing the output of the barcode wand with the source material, we see that the code itself is correct. This barcode was created using the B-Coder program. This is a totally inefficient way of decoding, and I know there’s a better way of doing it. You’ll see something like this:. That’s because there’s a lot more information in there than a simple 12 digit number sequence.
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To preserve the variety of software out there for the CueCat, I’ve started distributing it on this page.
The time now is So let’s assume that the coding follows this pattern, so we have an initial table that looks like this:. Introduction to Linux – A Hands on Guide This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter. The output isn’t what you expected, is it? We’re interested in the neat little reader, and the unlimited possibilities that it brings!
That’s because there’s a lot more information in there than a simple 12 digit number sequence. Give millions of geeks the same toy, and it evolves into a new toy.
If you see something other that what’s described on the kernl, let me know and I’ll update this information. First, let’s review how HTML forms work. This is the result of a barcode scan from a cup of Oreo YoCrunch Yogurt. The other purpose of this essay is to show that the intent of the encoding scheme is not to “protect” the output from being misused, but instead the output was designed to be placed into a URL with a minimum of post-processing on the part of the program that sends barcode output to a central site.
Having a problem logging in? The proof of the concept is to code up a decoder and try kdrnel.
What I’m trying to say is that the CueCat driver is now officially abandonware, and anyone willing to pick it up, update it, rewrite it, maintain it or do whatever else he wants with the code is more than welcome to do oernel. Are you new to LinuxQuestions. You’ll see something like this:.
CueCat driver for the Linux kernel
The comma character can be problematic for the server programmer when CGI libraries are used that impose a meaning on comma.
This is a totally inefficient way of decoding, and I know there’s a better way of doing it.
When you connect your reader, open up a text editor and scan a barcode. These numbers are attached to you, and your name floats around as a candidate for targetted advertising and Gestapo habit-tracking. Mine hasn’t even been opened.
CueCat Output Decode and Decipherment
The keyboard codes generate keystrokes that correspond to keyboard characters. What, if anything, did you have to do to get it to work? Now the question is, how is this delta applied? Note that registered members see fewer ads, and ContentLink is completely disabled once you log in.
We have a constant pattern. Whatever code is being used doesn’t use any form of kernsl streaming, because identical input appears to generate identical output. When different barcode cueca are tried, though, this number changes, so it’s obvious that this represents some sort of identifier.
The first and usually longest section is your unique serial number, assigned to your CueCat. The changes in the codes in positions 62 and 63 reflect obvious corrections to fix problems with HTML transmission. The output isdivided into 3 sections, seperated by periods. The program can run different programs based on different types of barcodes read, or the particular reader that has been used to read a barcode.
The formatting for the INI file was incorrect in versions prior to 1. The CueCat is a nifty little piece of hardware. The method used by the Cuecat barcode wand to return information from scanned barcodes is fairly simple.
Scanning several dozen different barcodes with human-readable values, including proprietary cues, shows that the code developed to the guidelines described here works fine.