Z8530_INTERRUPT(9)                  Public Functions Provided                  Z8530_INTERRUPT(9)



NAME
       z8530_interrupt - Handle an interrupt from a Z8530

SYNOPSIS
       irqreturn_t z8530_interrupt(int irq, void * dev_id);

ARGUMENTS
       irq
           Interrupt number

       dev_id
           The Z8530 device that is interrupting.

DESCRIPTION
       A Z85[2]30 device has stuck its hand in the air for attention. We scan both the channels
       on the chip for events and then call the channel specific call backs for each channel that
       has events. We have to use callback functions because the two channels can be in different
       modes.

       Locking is done for the handlers. Note that locking is done at the chip level (the 5uS
       delay issue is per chip not per channel). c->lock for both channels points to dev->lock

AUTHOR
       Alan Cox <alan AT lxorguk.uk>
           Author.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                        Z8530_INTERRUPT(9)