The Linux Manuals (man pages) document is an important part of Linux documents. Linux Manuals are organized as several sections. Each section has a group of commands for a specific area in Linux usage, administration or development.
snd_soc_dapm_put_enum_double – dapm enumerated double mixer set callback Synopsis int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol); Arguments kcontrol mixer control ucontrol control element information Description Callback to set the value of a dapm enumerated double mixer control. Returns 0 for success. Copyright
snd_soc_dapm_new_widgets – add new dapm widgets Synopsis int snd_soc_dapm_new_widgets(struct snd_soc_card *card); Arguments card card to be checked for new dapm widgets Description Checks the codec for any new dapm widgets and creates them if found. Returns 0 for success. Copyright
snd_soc_dapm_new_controls – create new dapm controls Synopsis int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, const struct snd_soc_dapm_widget *widget, int num); Arguments dapm DAPM context widget widget array num number of widgets Description Creates new DAPM controls based upon the templates. Returns 0 for success else error. Copyright
snd_soc_dapm_nc_pin_unlocked – permanently disable pin. Synopsis int snd_soc_dapm_nc_pin_unlocked(struct snd_soc_dapm_context *dapm, const char *pin); Arguments dapm DAPM context pin pin name Description Marks the specified pin as being not connected, disabling it along any parent or child widgets. At present this is identical to snd_soc_dapm_disable_pin but in future it will be extended to do additional things…
snd_soc_dapm_nc_pin – permanently disable pin. Synopsis int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin); Arguments dapm DAPM context pin pin name Description Marks the specified pin as being not connected, disabling it along any parent or child widgets. At present this is identical to snd_soc_dapm_disable_pin but in future it will be extended to do additional things…
snd_soc_dapm_kcontrol_widget – Returns the widget associated to a kcontrol Synopsis struct snd_soc_dapm_widget *snd_soc_dapm_kcontrol_widget(struct snd_kcontrol *kcontrol); Arguments kcontrol The kcontrol Copyright
snd_soc_dapm_kcontrol_dapm – Returns the dapm context associated to a kcontrol Synopsis struct snd_soc_dapm_context *snd_soc_dapm_kcontrol_dapm(struct snd_kcontrol *kcontrol); Arguments kcontrol The kcontrol Note This function must only be used on kcontrols that are known to have been registered for a CODEC. Otherwise the behaviour is undefined. Copyright
snd_soc_dapm_kcontrol_codec – Returns the codec associated to a kcontrol Synopsis struct snd_soc_codec *snd_soc_dapm_kcontrol_codec(struct snd_kcontrol *kcontrol); Arguments kcontrol The kcontrol Description This function must only be used on DAPM contexts that are known to be part of a CODEC (e.g. in a CODEC driver). Otherwise the behavior is undefined. Copyright
snd_soc_dapm_info_pin_switch – Info for a pin switch Synopsis int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo); Arguments kcontrol mixer control uinfo control element information Description Callback to provide information about a pin switch control. Copyright
snd_soc_dapm_ignore_suspend – ignore suspend status for DAPM endpoint Synopsis int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, const char *pin); Arguments dapm DAPM context pin audio signal pin endpoint (or start point) Description Mark the given endpoint or pin as ignoring suspend. When the system is disabled a path between two endpoints flagged as ignoring suspend will not be…
snd_soc_dapm_get_volsw – dapm mixer get callback Synopsis int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol); Arguments kcontrol mixer control ucontrol control element information Description Callback to get the value of a dapm mixer control. Returns 0 for success. Copyright
snd_soc_dapm_get_pin_switch – Get information for a pin switch Synopsis int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol); Arguments kcontrol mixer control ucontrol Value Copyright
snd_soc_dapm_get_pin_status – get audio pin status Synopsis int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, const char *pin); Arguments dapm DAPM context pin audio signal pin endpoint (or start point) Description Get audio pin status – connected or disconnected. Returns 1 for connected otherwise 0. Copyright
snd_soc_dapm_get_enum_double – dapm enumerated double mixer get callback Synopsis int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol); Arguments kcontrol mixer control ucontrol control element information Description Callback to get the value of a dapm enumerated double mixer control. Returns 0 for success. Copyright
snd_soc_dapm_free – free dapm resources Synopsis void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm); Arguments dapm DAPM context Description Free all dapm widgets and resources. Copyright
snd_soc_dapm_force_enable_pin_unlocked – force a pin to be enabled Synopsis int snd_soc_dapm_force_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, const char *pin); Arguments dapm DAPM context pin pin name Description Enables input/output pin regardless of any other state. This is intended for use with microphone bias supplies used in microphone jack detection. Requires external locking. Note snd_soc_dapm_sync needs to be called…
snd_soc_dapm_force_enable_pin – force a pin to be enabled Synopsis int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin); Arguments dapm DAPM context pin pin name Description Enables input/output pin regardless of any other state. This is intended for use with microphone bias supplies used in microphone jack detection. Note snd_soc_dapm_sync needs to be called after this for…
snd_soc_dapm_force_bias_level – Sets the DAPM bias level Synopsis int snd_soc_dapm_force_bias_level(struct snd_soc_dapm_context *dapm, enum snd_soc_bias_level level); Arguments dapm The DAPM context for which to set the level level The level to set Description Forces the DAPM bias level to a specific state. It will call the bias level callback of DAPM context with the specified level….
snd_soc_dapm_enable_pin_unlocked – enable pin. Synopsis int snd_soc_dapm_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, const char *pin); Arguments dapm DAPM context pin pin name Description Enables input/output pin and its parents or children widgets iff there is a valid audio route and active audio stream. Requires external locking. Note snd_soc_dapm_sync needs to be called after this for DAPM to do…
snd_soc_dapm_enable_pin – enable pin. Synopsis int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin); Arguments dapm DAPM context pin pin name Description Enables input/output pin and its parents or children widgets iff there is a valid audio route and active audio stream. Note snd_soc_dapm_sync needs to be called after this for DAPM to do any widget power…