diff options
Diffstat (limited to 'sound/pci/hda/hda_sysfs.c')
| -rw-r--r-- | sound/pci/hda/hda_sysfs.c | 35 |
1 files changed, 31 insertions, 4 deletions
diff --git a/sound/pci/hda/hda_sysfs.c b/sound/pci/hda/hda_sysfs.c index 9b49f156a12..bef721592c3 100644 --- a/sound/pci/hda/hda_sysfs.c +++ b/sound/pci/hda/hda_sysfs.c @@ -417,8 +417,13 @@ static DEVICE_ATTR_RW(user_pin_configs); static DEVICE_ATTR_WO(reconfig); static DEVICE_ATTR_WO(clear); -/* - * Look for hint string +/** + * snd_hda_get_hint - Look for hint string + * @codec: the HDA codec + * @key: the hint key string + * + * Look for a hint key/value pair matching with the given key string + * and returns the value string. If nothing found, returns NULL. */ const char *snd_hda_get_hint(struct hda_codec *codec, const char *key) { @@ -427,6 +432,15 @@ const char *snd_hda_get_hint(struct hda_codec *codec, const char *key) } EXPORT_SYMBOL_GPL(snd_hda_get_hint); +/** + * snd_hda_get_bool_hint - Get a boolean hint value + * @codec: the HDA codec + * @key: the hint key string + * + * Look for a hint key/value pair matching with the given key string + * and returns a boolean value parsed from the value. If no matching + * key is found, return a negative value. + */ int snd_hda_get_bool_hint(struct hda_codec *codec, const char *key) { const char *p; @@ -453,6 +467,16 @@ int snd_hda_get_bool_hint(struct hda_codec *codec, const char *key) } EXPORT_SYMBOL_GPL(snd_hda_get_bool_hint); +/** + * snd_hda_get_bool_hint - Get a boolean hint value + * @codec: the HDA codec + * @key: the hint key string + * @valp: pointer to store a value + * + * Look for a hint key/value pair matching with the given key string + * and stores the integer value to @valp. If no matching key is found, + * return a negative error code. Otherwise it returns zero. + */ int snd_hda_get_int_hint(struct hda_codec *codec, const char *key, int *valp) { const char *p; @@ -690,8 +714,11 @@ static int get_line_from_fw(char *buf, int size, size_t *fw_size_p, return 1; } -/* - * load a "patch" firmware file and parse it +/** + * snd_hda_load_patch - load a "patch" firmware file and parse it + * @bus: HD-audio bus + * @fw_size: the firmware byte size + * @fw_buf: the firmware data */ int snd_hda_load_patch(struct hda_bus *bus, size_t fw_size, const void *fw_buf) { |