root/include/linux/irqreturn.h

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INCLUDED FROM

#ifndef _LINUX_IRQRETURN_H
#define _LINUX_IRQRETURN_H

/**
 * enum irqreturn
 * @IRQ_NONE            interrupt was not from this device
 * @IRQ_HANDLED         interrupt was handled by this device
 * @IRQ_WAKE_THREAD     handler requests to wake the handler thread
 */
enum irqreturn {
        IRQ_NONE                = (0 << 0),
        IRQ_HANDLED             = (1 << 0),
        IRQ_WAKE_THREAD         = (1 << 1),
};

typedef enum irqreturn irqreturn_t;
#define IRQ_RETVAL(x)   ((x) ? IRQ_HANDLED : IRQ_NONE)

#endif
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