interrupt handler registering in mpc850sar : i need help !

i have to realize a char driver to set ATM Utopia for a linux
embedded system using motorola mpc850sar.

i need help with registering the interrupt handler function: i tried
to use request_8xxirq() for the SIU and cpm_install_handler() for CPM
but interrupt handler seems not run when i trasmit and receive. which is
the correct interrupt handler registering function ? or is just a
registers setting problem ? how can i do ?

how can i configure interrupt?

thanks

en_ch@libero.it


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