Moin Wolfgang,

On 10/13/2010 11:02 AM, Wolfgang Grandegger wrote:
>>> is there a way to detect whether the CAN frame actually was sent on the 
>>> bus? I 

[...]

> I'm following the discussion and realized that it will not work for
> devices doing the local loopback in hardware, like the flexcan
> controller. Strictly speaking it will only work properly for drivers

I realized that (yesterday while taking a shower), too. But that can be
fixed. The TX-path of the flexcan only uses one buffer, that can be
improved, too.

> doing the local loopback in software when the TX done interrupt is
> handled. Also some USB devices are not able to do that properly.

Doesn't this devices have a TX complete interrupt?

cheers, Marc

-- 
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