41 lines
760 B
C
41 lines
760 B
C
/*
|
|
* support.c - provides standard pnp functions for the use of pnp protocol drivers,
|
|
*
|
|
* Copyright 2003 Adam Belay <ambx1@neo.rr.com>
|
|
*
|
|
*/
|
|
|
|
#include <linux/config.h>
|
|
#include <linux/module.h>
|
|
#include <linux/ctype.h>
|
|
|
|
#ifdef CONFIG_PNP_DEBUG
|
|
#define DEBUG
|
|
#else
|
|
#undef DEBUG
|
|
#endif
|
|
|
|
#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);
|