diff options
Diffstat (limited to 'include/linux/kernfs.h')
| -rw-r--r-- | include/linux/kernfs.h | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/include/linux/kernfs.h b/include/linux/kernfs.h index d0912cf..ba993eb 100644 --- a/include/linux/kernfs.h +++ b/include/linux/kernfs.h @@ -37,8 +37,9 @@ struct kernfs_ops { /* * Read is handled by either seq_file or raw_read(). * - * If seq_show() is present, seq_file path is active. The behavior - * is equivalent to single_open(). @sf->private points to the + * If seq_show() is present, seq_file path is active. Other seq + * operations are optional and if not implemented, the behavior is + * equivalent to single_open(). @sf->private points to the * associated sysfs_open_file. * * read() is bounced through kernel buffer and a read larger than @@ -46,6 +47,10 @@ struct kernfs_ops { */ int (*seq_show)(struct seq_file *sf, void *v); + void *(*seq_start)(struct seq_file *sf, loff_t *ppos); + void *(*seq_next)(struct seq_file *sf, void *v, loff_t *ppos); + void (*seq_stop)(struct seq_file *sf, void *v); + ssize_t (*read)(struct sysfs_open_file *of, char *buf, size_t bytes, loff_t off); |
