[Paparazzi-devel] spi call back function

[Chris]

Hi.
Felix can i change the spi "after_cb" function during code execution so 
i can call different
functions or after the spi transaction initialization the call back 
function should remain fixed
the whole time?
I am writting a module and if i got this right the "after_cb" function 
is really used as the "event"
function which is commonly used for the modules.

max7456_trans.after_cb  = max7456_trans_cb;

where the function's prototype called back is defined like this:
static void max7456_trans_cb(struct spi_transaction *trans);

and the function definition has the "__attribute__ ((unused))" attribute:
static void max7456_trans_cb(struct spi_transaction *trans __attribute__ 
((unused))){

return;
}

Chris