linux/arch/x86/video/fbdev.c
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   1/*
   2 * Copyright (C) 2007 Antonino Daplas <adaplas@gmail.com>
   3 *
   4 * This file is subject to the terms and conditions of the GNU General Public
   5 * License.  See the file COPYING in the main directory of this archive
   6 * for more details.
   7 *
   8 */
   9#include <linux/fb.h>
  10#include <linux/pci.h>
  11
  12int fb_is_primary_device(struct fb_info *info)
  13{
  14        struct device *device = info->device;
  15        struct pci_dev *pci_dev = NULL;
  16        struct resource *res = NULL;
  17        int retval = 0;
  18
  19        if (device)
  20                pci_dev = to_pci_dev(device);
  21
  22        if (pci_dev)
  23                res = &pci_dev->resource[PCI_ROM_RESOURCE];
  24
  25        if (res && res->flags & IORESOURCE_ROM_SHADOW)
  26                retval = 1;
  27
  28        return retval;
  29}
  30EXPORT_SYMBOL(fb_is_primary_device);
  31MODULE_LICENSE("GPL");
  32