Dear linux-omap community,
I am writing a simple driver for BeagleBoard
and trying to get an understanding of how interrupts work.
Could you please answer a small question. What is a difference between irq
and virtual_irq_start in structure gpio_bank in file
arch/arm/plat-omap/gpio.c
As far as I understood irq corresponds to real hardware interrupts while
virtual_irq_start is completely obscure for me.
I didn't find a clue in the documentation.
Any tiny help will be hugely appreciated.
Andrew
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