Thanks for the feedback - I will try libusb again with 2.6 although I
think we will still see the same issues with the interrupt transfers
(one-shot wasn't really the problem there).

As for the serial driver - what would be the main advantages of that?
The usb tower doesn't really do anything sophisticated in its
communication as you could probably see from the driver.

Otherwise, I will clean up the code a bit more using usb-skeleton as a
guide.

thanks

david  


On Fri, 2003-09-05 at 07:56, Greg KH wrote:
> On Wed, Sep 03, 2003 at 04:08:22PM +0800, David Glance wrote:
> > I would like to submit this driver for inclusion as a usb/misc driver
> > for 2.6.0-test5
> > 
> > The Lego usb IR tower is used with Lego Mindstorms kits and this is used
> > by a number of Universities (including mine) and schools for teaching
> > computer science, robotics, software engineering, etc.
> > 
> > It was in 2.4, a one-shot interrupt driver and so was quite unusual in
> > that respect (one-shot as a concept is apparently no longer available in
> > 2.6 as such). Two principle Lego RCX development environments have been
> > modified to work with the driver (LeJOS and NQC). It has the unofficial
> > support of Lego (they were reviewing their licensing for their SDK).
> 
> one-shot interrupt urbs is all you get in 2.6, you have to explicitly
> resubmit it now for it not to be.  So in 2.6, can't you use libusb just
> fine?
> 
> > Comments would be gratefully received.
> 
> Hm, the patch isn't inline, so I can't comment directly.
> 
> But in short, you aren't using the usb minor number handling properly.
> You do not need your list of devices anymore, you can get the info from
> the interface passed to you.  See the usb_find_interface() function for
> what you need to use in your open() function.
> 
> Also, any reason why this shouldn't just be a usb-serial type driver?
> 
> thanks,
> 
> greg k-h
-- 
David Glance <[EMAIL PROTECTED]>




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