USB HID parser

Milan Obuch freebsd-usb at
Wed May 14 21:31:18 UTC 2008

On Wednesday 14 May 2008, Chuck Robey wrote:
> I wrote a parser, and I don't know if anyone might be interested in it.  I
> didn't write it as something to be used in a driver ... I wrote it as a
> learning aid, for someone who's trying to learn that horrible USB HID spec.
>  It's quite verbose, most especially if you use it in GUI mode (I wrote it
> in Python, and it's got a integral Tkinter GUI.  In Python mode, it's got
> help info available on every output it has, and displays the data it's
> parsing in a way taht makes it fairly easy to have the USB HID parser on
> your knee, while you slowly step the parser thru the input data.
> The input data, I originally wrote it to use the output of Kai Wang's USB
> HID parser/descriptor dumper, but it's more verbose, and (like I said) is
> perfectly set up to let you follow the parsing, item by item, from the
> orignal hex to the output.
> The Non-GUI is somewhat less verbose, but this is the first time I;ve let
> it be seen, and if you think you'd like to see it changed, I'm not against
> adding a special mode for a small group of users, even just one user if it
> seems like a likely-enough suggestion.
> I called it parsetool.  I know that's a fairly dumb name )(there are one or
> two projects already oout with that name), come up with a better one, and
> I'll gladly use it (if it's not overly silly).
> Write me if you want it, I'll mail it to you, the tarball is fairly small
> (even with all those tables, it's only about 25K compressed) and
> installation couldn't really get any easier, just make sure you have a
> working python of 2.3 or later, with a working Tkinter.

Could you eventually make a port from it and submit it this way? I think it 
could be usefull for many...

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