swh:1:snp:173f8deb0c56c557784b4fd217e7608ac6197844
Raw File
Tip revision: 101142c37be8e5af9b847860219217e6b958c739 authored by Linus Torvalds on 15 February 2008, 20:57:20 UTC
Linux 2.6.25-rc2
Tip revision: 101142c
support.c
/*
 * support.c - standard functions for the use of pnp protocol drivers
 *
 * Copyright 2003 Adam Belay <ambx1@neo.rr.com>
 */

#include <linux/module.h>
#include <linux/ctype.h>
#include <linux/pnp.h>
#include "base.h"

/**
 * pnp_is_active - Determines if a device is active based on its current
 *	resources
 * @dev: pointer to the desired PnP device
 */
int pnp_is_active(struct pnp_dev *dev)
{
	if (!pnp_port_start(dev, 0) && pnp_port_len(dev, 0) <= 1 &&
	    !pnp_mem_start(dev, 0) && pnp_mem_len(dev, 0) <= 1 &&
	    pnp_irq(dev, 0) == -1 && pnp_dma(dev, 0) == -1)
		return 0;
	else
		return 1;
}

EXPORT_SYMBOL(pnp_is_active);
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