1Z8530_INTERRUPT(9)         Public Functions Provided        Z8530_INTERRUPT(9)
2
3
4

NAME

6       z8530_interrupt - Handle an interrupt from a Z8530
7

SYNOPSIS

9       irqreturn_t z8530_interrupt(int irq, void * dev_id);
10

ARGUMENTS

12       irq
13           Interrupt number
14
15       dev_id
16           The Z8530 device that is interrupting.
17

DESCRIPTION

19       A Z85[2]30 device has stuck its hand in the air for attention. We scan
20       both the channels on the chip for events and then call the channel
21       specific call backs for each channel that has events. We have to use
22       callback functions because the two channels can be in different modes.
23
24       Locking is done for the handlers. Note that locking is done at the chip
25       level (the 5uS delay issue is per chip not per channel). c->lock for
26       both channels points to dev->lock
27

AUTHOR

29       Alan Cox <alan@lxorguk.ukuu.org.uk>
30           Author.
31

33Kernel Hackers Manual 2.6.         June 2019                Z8530_INTERRUPT(9)
Impressum