Lines Matching defs:dev
8 * Shared /dev/zero mmapping support, Feb 2000, Kanoj Sarcar <kanoj@sgi.com>
24 #include <linux/backing-dev.h>
72 "Program %s tried to access /dev/mem between %Lx->%Lx.\n",
668 * Special lseek() function for /dev/null and /dev/zero. Most notably, you
778 * capabilities for /dev/zero
822 const struct memdev *dev;
828 dev = &devlist[minor];
829 if (!dev->fops)
832 filp->f_op = dev->fops;
833 if (dev->dev_info)
834 filp->f_mapping->backing_dev_info = dev->dev_info;
836 /* Is /dev/mem or /dev/kmem ? */
837 if (dev->dev_info == &directly_mappable_cdev_bdi)
840 if (dev->fops->open)
841 return dev->fops->open(inode, filp);
851 static char *mem_devnode(struct device *dev, umode_t *mode)
853 if (mode && devlist[MINOR(dev->devt)].mode)
854 *mode = devlist[MINOR(dev->devt)].mode;
882 * Create /dev/port?