The highlevel Driver API consists of following functions:
request_irq()
free_irq()
disable_irq()
enable_irq()
disable_irq_nosync() (SMP only)
synchronize_irq() (SMP only)
set_irq_type()
set_irq_wake()
set_irq_data()
set_irq_chip()
set_irq_chip_data()
See the autogenerated function documentation for details.