#define __NO_VERSION__ #include #include #if LINUX_VERSION_CODE < KERNEL_VERSION(2, 4, 0) #include #include #include #include #include static int snd_info_card_readlink(struct dentry *dentry, char *buffer, int buflen) { char *s = PDE(dentry->d_inode)->data; int len; if (s == NULL) return -EIO; len = strlen(s); if (len > buflen) len = buflen; if (copy_to_user(buffer, s, len)) return -EFAULT; return len; } static struct dentry *snd_info_card_followlink(struct dentry *dentry, struct dentry *base, unsigned int follow) { char *s = PDE(dentry->d_inode)->data; return lookup_dentry(s, base, follow); } static struct file_operations snd_info_card_link_operations = { NULL }; struct inode_operations snd_info_card_link_inode_operations = { .default_file_ops = &snd_info_card_link_operations, .readlink = snd_info_card_readlink, .follow_link = snd_info_card_followlink, }; static struct proc_dir_entry *proc_symlink(const char *name, struct proc_dir_entry *parent, const char *dest) { char *s = snd_kmalloc_strdup(dest, GFP_KERNEL); struct proc_dir_entry *p; if (s == NULL) return NULL; p = create_proc_entry(name, S_IFLNK | S_IRUGO | S_IWUGO | S_IXUGO, parent); if (p == NULL) { kfree(s); return NULL; } p->data = s; p->ops = &snd_info_card_link_inode_operations; return p; } static void snd_info_fill_inode(struct inode *inode, int fill) { if (fill) MOD_INC_USE_COUNT; else MOD_DEC_USE_COUNT; } static inline void snd_info_entry_prepare(struct proc_dir_entry *de) { de->fill_inode = snd_info_fill_inode; } void snd_remove_proc_entry(struct proc_dir_entry *parent, struct proc_dir_entry *de) { if (parent && de) { if (S_ISDIR(de->mode) && de->data) { kfree(de->data); de->data = 0; } proc_unregister(parent, de->low_ino); } } static struct inode_operations snd_info_entry_inode_operations = { &snd_info_entry_operations, /* default sound info directory file-ops */ }; #endif /* LINUX_VERSION_CODE < 2.4.0 */