diff options
Diffstat (limited to 'sound/core/info.c')
| -rw-r--r-- | sound/core/info.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/sound/core/info.c b/sound/core/info.c index 5cd00629c0f5..6c149fa54d2d 100644 --- a/sound/core/info.c +++ b/sound/core/info.c @@ -866,6 +866,38 @@ int snd_info_register(struct snd_info_entry *entry) } EXPORT_SYMBOL(snd_info_register); +/** + * snd_card_rw_proc_new - Create a read/write text proc file entry for the card + * @card: the card instance + * @name: the file name + * @private_data: the arbitrary private data + * @read: the read callback + * @write: the write callback, NULL for read-only + * + * This proc file entry will be registered via snd_card_register() call, and + * it will be removed automatically at the card removal, too. + */ +int snd_card_rw_proc_new(struct snd_card *card, const char *name, + void *private_data, + void (*read)(struct snd_info_entry *, + struct snd_info_buffer *), + void (*write)(struct snd_info_entry *entry, + struct snd_info_buffer *buffer)) +{ + struct snd_info_entry *entry; + + entry = snd_info_create_card_entry(card, name, card->proc_root); + if (!entry) + return -ENOMEM; + snd_info_set_text_ops(entry, private_data, read); + if (write) { + entry->mode |= 0200; + entry->c.text.write = write; + } + return 0; +} +EXPORT_SYMBOL_GPL(snd_card_rw_proc_new); + /* */ |