HAL_IRQMax
Hardware Abstraction Layer
HAL entry points from RISC OS
ยป HAL_IRQMax
HAL_IRQMax
(HAL entry #107)
int HAL_IRQMax(void)
| Entry | |
|---|---|
| - |
| Exit | |
|---|---|
| - | Returns the highest valid IRQ device number, plus one |
Use
This call is used by the OS to determine the highest IRQ device number supported by the HAL/hardware. For example, if the IRQ controller in the device has 32 interrupt sources, and the HAL numbers them sequentially starting from zero, then HAL_IRQMax should return 32.
See also
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