Re: Thoughts on a new driver

Pete Zaitcev <[email protected]>
Newsgroups gmane.linux.usb.devel
Organization Red Hat, Inc.
Message-ID <[email protected]>
On Thu, 01 Feb 2007 22:48:02 -0800, Phil Dibowitz <[email protected]> wrote:

> So at a relatively blind guess, I'm thinking a few setup commands and a data
> transfer is about all there is to this thing. That is of course without
> having used any USB sniffers or anything.

This probably is true, but what is the value of having it without
owning the back-end which generates the data blob?

> Which leads me to my question. I'm not entirely sure where to start. Am I
> right in thinking this is a good candidate for libusb?

Very likely so, however you'd need to unbind hid through an echo
to a sysfs file. I can never remember how it works though, try to
search for "bind+unbind+echo".

> Should I start by trying to get some hardware docs from
> Logitech (who given they supposedly have a linux driver "in the works" I
> suspect is unlikely to give me anything), or is this thing (seemingly)
> simple enough to figure out?

A request for docs would not hurt. Other than that, I suspect you'll
need to sniff no matter what.

-- Pete

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