cafe_ccic smbus issues

Andres Salomon dilinger at
Thu Apr 26 15:37:45 EDT 2007

Jonathan Corbet wrote:
> Andres Salomon <dilinger at> wrote:
>> Huh.  Note that uncommenting out the mdelays in cafe_ctlr_power_up()
>> causes the timeout errors to go away.  However, the camera still does
>> not display an image..
> OK...well....something has clearly changed.  Among other things, it
> seems that, somehow, the sensor is taking longer to get itself in order
> once the power goes on.
> After that, though, "does not display an image" is a bit of a vague
> description.  Is the controller returning blank images to the
> application, or do things just stop?  Is the interrupt count in
> /proc/interrupts going up?
> Do you have a pre-B3 you could send this way so I could look at this
> more directly?
> jon

I'm not sure if the interrupt count is going up; it just displays a
white square.  If I click the button to take a picture, the busy-cursor
keeps spinning forever.

That was the first pre-b3 I'd seen; hopefully more are on the way...

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