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ENABLE_IRQ(9) Hardware Interfaces ENABLE_IRQ(9)

NAME

enable_irq - enable handling of an irq

SYNOPSIS

void enable_irq(unsigned int irq);

ARGUMENTS

irq
Interrupt to enable

DESCRIPTION

Undoes the effect of one call to disable_irq. If this matches the last disable, processing of interrupts on this IRQ line is re-enabled.
This function may be called from IRQ context only when desc->irq_data.chip->bus_lock and desc->chip->bus_sync_unlock are NULL !

COPYRIGHT

March 2016 Kernel Hackers Manual 3.2.