writing to a fifo in an ISR (fwd)

[Jan Veldeman <Jan.Veldeman@student.kuleuven.ac.be>]

Hi,

Is it possible to write into a fifo from inside an ISR?
If you attach a handler onto that fifo, is that handler
also executed in the ISR context, or is that handler a new thread?

I would like to know this, because I would like that rt_com writes
into a fifo, so that I can attach a handler to it and can perform 
some tasks when new data arrives.
I already tried addapting rt_com, but I always get kernel panics.

Thanks

Jan