1 /* 2 * support.c - provides standard pnp functions for the use of pnp protocol drivers, 3 * 4 * Copyright 2003 Adam Belay <ambx1@neo.rr.com> 5 * 6 */ 7 8 #include <linux/module.h> 9 #include <linux/ctype.h> 10 #include <linux/pnp.h> 11 #include "base.h" 12 13 /** 14 * pnp_is_active - Determines if a device is active based on its current resources 15 * @dev: pointer to the desired PnP device 16 * 17 */ 18 19 int pnp_is_active(struct pnp_dev * dev) 20 { 21 if (!pnp_port_start(dev, 0) && pnp_port_len(dev, 0) <= 1 && 22 !pnp_mem_start(dev, 0) && pnp_mem_len(dev, 0) <= 1 && 23 pnp_irq(dev, 0) == -1 && 24 pnp_dma(dev, 0) == -1) 25 return 0; 26 else 27 return 1; 28 } 29 30 31 32 EXPORT_SYMBOL(pnp_is_active); 33