[Playerstage-users] Help with camera control - Logitech Sphere (driver)

[Ezequiel A. Q. B. <equ...@in...>]

Hello Player/Stage users!

I'm working with:
+ Player 3.0.1
+ Ubuntu 9.04
+ Logitech QuickCam Sphere AF
+ C/C++

I'm trying to control this device from Player, to take pictures and 
blob detection. I've tried the 'sphere' driver, which is loaded 
correctly when I start Player but when I try to use the camera commands 
(like GetImageSize' or 'SaveFrame') from the control program, the 
player server give me these errors:
> Setting up sphere driver
> fg_open(): get framebuffer failed; ignoring: Invalid argument
> fg_open(): get memory buffer: Invalid argument
> error   : Setup():  unable to open
> error   : Driver failed to Setup (-1)

do you have any idea of why I'm getting these messages?
do you know where can I find any working examples of use for this 
driver?  or any other example for controlling this camera?

Hope someone can help me out!
Regards!