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/config.h> 9 #include <linux/module.h> 10 #include <linux/ctype.h> 11 12 #ifdef CONFIG_PNP_DEBUG 13 #define DEBUG 14 #else 15 #undef DEBUG 16 #endif 17 18 #include <linux/pnp.h> 19 #include "base.h" 20 21 /** 22 * pnp_is_active - Determines if a device is active based on its current resources 23 * @dev: pointer to the desired PnP device 24 * 25 */ 26 27 int pnp_is_active(struct pnp_dev * dev) 28 { 29 if (!pnp_port_start(dev, 0) && pnp_port_len(dev, 0) <= 1 && 30 !pnp_mem_start(dev, 0) && pnp_mem_len(dev, 0) <= 1 && 31 pnp_irq(dev, 0) == -1 && 32 pnp_dma(dev, 0) == -1) 33 return 0; 34 else 35 return 1; 36 } 37 38 39 40 EXPORT_SYMBOL(pnp_is_active); 41