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Merge pull request #564 from a3f/patch-1

Fix typo
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0xAX 2018-01-29 09:02:51 +01:00 committed by GitHub
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@ -210,7 +210,7 @@ int request_threaded_irq(unsigned int irq, irq_handler_t handler,
}
```
We arelady saw the `irqaction` and the `irq_desc` structures in this chapter. The first structure represents per interrupt action descriptor and contains pointers to the interrupt handler, name of the device, interrupt number, etc. The second structure represents a descriptor of an interrupt and contains pointer to the `irqaction`, interrupt flags, etc. Note that the `request_threaded_irq` function called by the `request_irq` with the additioanal parameter: `irq_handler_t thread_fn`. If this parameter is not `NULL`, the `irq` thread will be created and the given `irq` handler will be executed in this thread. In the next step we need to make following checks:
We already saw the `irqaction` and the `irq_desc` structures in this chapter. The first structure represents per interrupt action descriptor and contains pointers to the interrupt handler, name of the device, interrupt number, etc. The second structure represents a descriptor of an interrupt and contains pointer to the `irqaction`, interrupt flags, etc. Note that the `request_threaded_irq` function called by the `request_irq` with the additional parameter: `irq_handler_t thread_fn`. If this parameter is not `NULL`, the `irq` thread will be created and the given `irq` handler will be executed in this thread. In the next step we need to make following checks:
```C
if (((irqflags & IRQF_SHARED) && !dev_id) ||