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Listing 5. The proc_dir_entry Structure

struct proc_dir_entry burp_proc_root = {
    0,                  /* low_ino: the inode -- dynamic */
    4, "root",          /* len of name and name */
    S_IFBLK | 0600,     /* mode: block device, r/w by owner */
    1, 0, 0,            /* nlinks, owner (root), group (root) */
    0, &blkdev_inode_operations,  /* size (unused), inode ops */
    NULL,               /* get_info: unused */
    burp_root_fill_ino, /* fill_inode: tell your major/minor */
    /* nothing more */
};

struct proc_dir_entry burp_proc_insmod = {
    0,                  /* low_ino: the inode -- dynamic */
    6, "insmod",        /* len of name and name */
    S_IFREG | S_IWUGO,  /* mode: REGular, Write UserGroupOther */
    1, 0, 0,            /* nlinks, owner (root), group (root) */
    0, &burp_insmod_iops, /* size - unused; inode ops */
};

struct proc_dir_entry burp_proc_jiffies = {
    0,                  /* low_ino: the inode -- dynamic */
    7, "jiffies",       /* len of name and name */
    S_IFREG | S_IRUGO,  /* mode: regular, read by anyone */
    1, 0, 0,            /* nlinks, owner (root), group (root) */
    11, NULL,           /* size is 11; inode ops unused */
    burp_read_jiffies,  /* use "get_info" instead */
};