Rép. : [Xenomai-help] Share interrupts between two subdevices

Rép. : [Xenomai-help] Share interrupts between two subdevices

[Nicolas BLANCHARD]

>>> <mjcoelho@domain.hid> 31.10 19:50 >>>
>Hi!
>
>
>I'm implementing a driver for a device that has two subdevices
(basically,
>a serial board with two ports). For this to work, i need to use the
same
>interrupt for both subdevices.
>
>So the driver, ATM, initializes both subdevices and then only one
requests
>and enables the interrupt.
>
>Does RTDM call the interrupt handler of the subdevice that didn't
request
>the irq? What capabilities does RTDM have in terms of interrupt
sharing
>between drivers in rt "environment"?
>
>
>Thanks for your help!



Hello,

You have a Xenomai shared interrupt option in kernel options,
for example you can see the 16550 xenomai drivers that could use
shared interrupts.



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