platform_get_irq()

platform_get_irq()

linux-2.6.22/drivers/base/platform.c

/**
*      platform_get_irq - get an IRQ for a device
*      @dev: platform device
*      @num: IRQ number index
*/

得到第num块flags为  IORESOURCE_IRQ 的资源
int platform_get_irq(struct platform_device *dev, unsigned int num)
{
        struct resource *r = platform_get_resource(dev, IORESOURCE_IRQ, num);

        return r ? r->start : -ENXIO;
}
EXPORT_SYMBOL_GPL(platform_get_irq);