Re: [Libff-devel] Sidewinder FF driver

[Fabien B. <fab...@fr...>]

Rodrigo Damazio wrote :
> Fabien Brachere wrote:
> 
> >
> >Ok, I didn't have an heart attack, and I put all this stuff on a very
> >minimal web site: http://madfab.free.fr/ff/index.html
> >
> >Fabien Brachere
> >
>         Nicely done...perhaps you'd like to help with the PID code? 
> Instead of registering itself for specific USB device IDs, it's a 
> subclass of the HID class, so whenever a HID device is detected, it 
> checks if it's also PID-compliant, and if it is then you can use force 
> feedback calls on it(this also allows us to not worry at all about 
> reading the axes input, since HID does that already)...the structs for 
> these calls are the very same that are used for I-Force, the only 
> difference is how we generate and send packets to the device...

I know that the Sidewinder is registered by the HID module, but I'm not
satisfy with this: the joydev module report 24 buttons and 10 axes (it's
a big joystick but not so big ...), the only quick solution I found is
to short-cut hid by specifying USB device IDs, it's just for
development, I think we can see this later.
The first important thing is to implement correct upload effect to the
device memory, once uploaded it's trivial to play it.

>         It's a reasonably big set of commands to implement, so I 
> estimate it should take about a month or two for it to be 100% 
> working...the Sidewinder will work sooner though, 'cause it has its own 
> memory management...but we'll have to implement memory management for 
> devices that don't have it...that'll be a hassle, specially since we 
> don't have a good way to debug the device's internal memory...but let's 
> leave that for later and get the Sidewinder working first...
> 
> Rodrigo
> 

I'm OK with this, when the sidewinder will work, we can add memory
management in a sub-structure.

Fabien