On Wed, Sep 03, 2008 at 06:36:39PM +0200, Sébastien Chrétien wrote: > Ok I will try irq_create_mapping tomorrow. > When have I to use this function ? You always need to create a mapping (though doing it with irq_of_parse_and_map is preferred). request_irq() takes virtual IRQ numbers, not hardware IRQ numbers. -Scott