Messages in this thread |  | | Date | Sat, 15 Apr 2017 11:54:50 +0200 (CEST) | From | Thomas Gleixner <> | Subject | Re: [PATCH 06/38] Annotate hardware config module parameters in drivers/clocksource/ |
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On Sat, 15 Apr 2017, David Howells wrote: > Thomas Gleixner <tglx@linutronix.de> wrote: > > > > Btw, is it possible to use IRQ grants to prevent a device that has limited > > > IRQ options from being drivable? > > > > What do you mean with 'IRQ grants' ? > > request_irq().
I still can't parse the sentence above. If request_irq() fails the device initialization fails. If you request the wrong irq then request_irq() might succeed but the device won't work.
Thanks,
tglx
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