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Typedefs |
typedef _snd_hctl_elem | snd_hctl_elem_t |
typedef _snd_hctl | snd_hctl_t |
typedef int(* | snd_hctl_compare_t )(const snd_hctl_elem_t *e1, const snd_hctl_elem_t *e2) |
| Compare function for sorting HCTL elements.
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typedef int(* | snd_hctl_callback_t )(snd_hctl_t *hctl, unsigned int mask, snd_hctl_elem_t *elem) |
| HCTL callback function.
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typedef int(* | snd_hctl_elem_callback_t )(snd_hctl_elem_t *elem, unsigned int mask) |
| HCTL element callback function.
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Functions |
int | snd_hctl_compare_fast (const snd_hctl_elem_t *c1, const snd_hctl_elem_t *c2) |
| A "don't care" fast compare functions that may be used with snd_hctl_set_compare.
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int | snd_hctl_open (snd_hctl_t **hctl, const char *name, int mode) |
| Opens an HCTL.
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int | snd_hctl_open_ctl (snd_hctl_t **hctlp, snd_ctl_t *ctl) |
| Opens an HCTL.
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int | snd_hctl_close (snd_hctl_t *hctl) |
| close HCTL handle
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int | snd_hctl_nonblock (snd_hctl_t *hctl, int nonblock) |
| set nonblock mode
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int | snd_hctl_poll_descriptors_count (snd_hctl_t *hctl) |
| get count of poll descriptors for HCTL handle
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int | snd_hctl_poll_descriptors (snd_hctl_t *hctl, struct pollfd *pfds, unsigned int space) |
| get poll descriptors
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int | snd_hctl_poll_descriptors_revents (snd_hctl_t *ctl, struct pollfd *pfds, unsigned int nfds, unsigned short *revents) |
| get returned events from poll descriptors
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unsigned int | snd_hctl_get_count (snd_hctl_t *hctl) |
| Get number of loaded elements for an HCTL.
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int | snd_hctl_set_compare (snd_hctl_t *hctl, snd_hctl_compare_t hsort) |
| Change HCTL compare function and reorder elements.
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snd_hctl_elem_t * | snd_hctl_first_elem (snd_hctl_t *hctl) |
| get first element for an HCTL
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snd_hctl_elem_t * | snd_hctl_last_elem (snd_hctl_t *hctl) |
| get last element for an HCTL
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snd_hctl_elem_t * | snd_hctl_find_elem (snd_hctl_t *hctl, const snd_ctl_elem_id_t *id) |
| Search an HCTL element.
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void | snd_hctl_set_callback (snd_hctl_t *hctl, snd_hctl_callback_t callback) |
| Set callback function for an HCTL.
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void | snd_hctl_set_callback_private (snd_hctl_t *hctl, void *data) |
| Set callback private value for an HCTL.
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void * | snd_hctl_get_callback_private (snd_hctl_t *hctl) |
| Get callback private value for an HCTL.
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int | snd_hctl_load (snd_hctl_t *hctl) |
| Load an HCTL with all elements and sort them.
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int | snd_hctl_free (snd_hctl_t *hctl) |
| free HCTL loaded elements
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int | snd_hctl_handle_events (snd_hctl_t *hctl) |
| Handle pending HCTL events invoking callbacks.
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const char * | snd_hctl_name (snd_hctl_t *hctl) |
| get identifier of HCTL handle
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int | snd_hctl_wait (snd_hctl_t *hctl, int timeout) |
| Wait for a HCTL to become ready (i.e. at least one event pending).
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snd_ctl_t * | snd_hctl_ctl (snd_hctl_t *hctl) |
| Get a ctl handle associated to the given hctl handle.
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snd_hctl_elem_t * | snd_hctl_elem_next (snd_hctl_elem_t *elem) |
| get next HCTL element
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snd_hctl_elem_t * | snd_hctl_elem_prev (snd_hctl_elem_t *elem) |
| get previous HCTL element
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int | snd_hctl_elem_info (snd_hctl_elem_t *elem, snd_ctl_elem_info_t *info) |
| Get information for an HCTL element.
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int | snd_hctl_elem_read (snd_hctl_elem_t *elem, snd_ctl_elem_value_t *value) |
| Get value for an HCTL element.
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int | snd_hctl_elem_write (snd_hctl_elem_t *elem, snd_ctl_elem_value_t *value) |
| Set value for an HCTL element.
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snd_hctl_t * | snd_hctl_elem_get_hctl (snd_hctl_elem_t *elem) |
| Get HCTL handle for an HCTL element.
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void | snd_hctl_elem_get_id (const snd_hctl_elem_t *obj, snd_ctl_elem_id_t *ptr) |
| Get CTL element identifier of a CTL element id/value.
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unsigned int | snd_hctl_elem_get_numid (const snd_hctl_elem_t *obj) |
| Get element numeric identifier of a CTL element id/value.
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snd_ctl_elem_iface_t | snd_hctl_elem_get_interface (const snd_hctl_elem_t *obj) |
| Get interface part of CTL element identifier of a CTL element id/value.
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unsigned int | snd_hctl_elem_get_device (const snd_hctl_elem_t *obj) |
| Get device part of CTL element identifier of a CTL element id/value.
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unsigned int | snd_hctl_elem_get_subdevice (const snd_hctl_elem_t *obj) |
| Get subdevice part of CTL element identifier of a CTL element id/value.
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const char * | snd_hctl_elem_get_name (const snd_hctl_elem_t *obj) |
| Get name part of CTL element identifier of a CTL element id/value.
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unsigned int | snd_hctl_elem_get_index (const snd_hctl_elem_t *obj) |
| Get index part of CTL element identifier of a CTL element id/value.
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void | snd_hctl_elem_set_callback (snd_hctl_elem_t *obj, snd_hctl_elem_callback_t val) |
| Set callback function for an HCTL element.
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void * | snd_hctl_elem_get_callback_private (const snd_hctl_elem_t *obj) |
| Get callback private value for an HCTL element.
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void | snd_hctl_elem_set_callback_private (snd_hctl_elem_t *obj, void *val) |
| Set callback private value for an HCTL element.
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