Gabriele Filosofi wrote:
after having enabled an interrupt source with
/request_irq(gpio_to_irq(37)//, &irq_handler, IRQF_TRIGGER_FALLING,
//“//myirq//”//, NULL);/
how to prevent other interrupts (of the same type) to occour during
/irq_handl//er()/ processing?
I would like to disable the interrupt only for the /irq_handl//er()/
execution time.
i suppose you worry about reentrancy of your interrupt handler. in linux
interrupts don't need to be reentrant, the kernel guarantees that a same
handler isn't executed twice.
From Robert Loves' "Linux Kernel Development":
"By default, all interrupts are enabled except the interrupt lines of
any running handlers, which are masked out on all processors"
in case you want to disable all interrupts use the IRQF_DISABLED flag
(SA_INTERRUPT in older kernels)
best regards
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