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#define __NO_VERSION__
#include <linux/config.h>
#include <linux/version.h>
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 4, 0)
#include <sound/driver.h>
#include <sound/core.h>
#include <sound/info.h>
#include <sound/version.h>
#include <linux/proc_fs.h>
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 = kstrdup(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_ISLNK(de->mode) && de->data) {
kfree(de->data);
de->data = 0;
}
proc_unregister(parent, de->low_ino);
}
}
#endif /* LINUX_VERSION_CODE < 2.4.0 */
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