Functions | |
int | snd_hctl_open (snd_hctl_t **hctlp, const char *name, int mode) |
Opens an HCTL. | |
int | snd_hctl_open_ctl (snd_hctl_t **hctlp, snd_ctl_t *ctl) |
Opens an HCTL. | |
int | snd_hctl_close (snd_hctl_t *hctl) |
close HCTL handle | |
const char * | snd_hctl_name (snd_hctl_t *hctl) |
get identifier of HCTL handle | |
int | snd_hctl_nonblock (snd_hctl_t *hctl, int nonblock) |
set nonblock mode | |
int | snd_hctl_async (snd_hctl_t *hctl, int sig, pid_t pid) |
set async mode | |
int | snd_hctl_poll_descriptors_count (snd_hctl_t *hctl) |
get count of poll descriptors for HCTL handle | |
int | snd_hctl_poll_descriptors (snd_hctl_t *hctl, struct pollfd *pfds, unsigned int space) |
get poll descriptors | |
int | snd_hctl_poll_descriptors_revents (snd_hctl_t *hctl, struct pollfd *pfds, unsigned int nfds, unsigned short *revents) |
get returned events from poll descriptors | |
int | snd_hctl_free (snd_hctl_t *hctl) |
free HCTL loaded elements | |
int | snd_hctl_set_compare (snd_hctl_t *hctl, snd_hctl_compare_t compare) |
Change HCTL compare function and reorder elements. | |
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. | |
snd_hctl_elem_t * | snd_hctl_first_elem (snd_hctl_t *hctl) |
get first element for an HCTL | |
snd_hctl_elem_t * | snd_hctl_last_elem (snd_hctl_t *hctl) |
get last element for an HCTL | |
snd_hctl_elem_t * | snd_hctl_elem_next (snd_hctl_elem_t *elem) |
get next HCTL element | |
snd_hctl_elem_t * | snd_hctl_elem_prev (snd_hctl_elem_t *elem) |
get previous HCTL element | |
snd_hctl_elem_t * | snd_hctl_find_elem (snd_hctl_t *hctl, const snd_ctl_elem_id_t *id) |
Search an HCTL element. | |
int | snd_hctl_load (snd_hctl_t *hctl) |
Load an HCTL with all elements and sort them. | |
void | snd_hctl_set_callback (snd_hctl_t *hctl, snd_hctl_callback_t callback) |
Set callback function for an HCTL. | |
void | snd_hctl_set_callback_private (snd_hctl_t *hctl, void *callback_private) |
Set callback private value for an HCTL. | |
void * | snd_hctl_get_callback_private (snd_hctl_t *hctl) |
Get callback private value for an HCTL. | |
unsigned int | snd_hctl_get_count (snd_hctl_t *hctl) |
Get number of loaded elements for an HCTL. | |
int | snd_hctl_wait (snd_hctl_t *hctl, int timeout) |
Wait for a HCTL to become ready (i.e. at least one event pending). | |
snd_ctl_t * | snd_hctl_ctl (snd_hctl_t *hctl) |
Get a ctl handle associated to the given hctl handle. | |
int | snd_hctl_handle_events (snd_hctl_t *hctl) |
Handle pending HCTL events invoking callbacks. | |
int | snd_hctl_elem_info (snd_hctl_elem_t *elem, snd_ctl_elem_info_t *info) |
Get information for an HCTL element. | |
int | snd_hctl_elem_read (snd_hctl_elem_t *elem, snd_ctl_elem_value_t *value) |
Get value for an HCTL element. | |
int | snd_hctl_elem_write (snd_hctl_elem_t *elem, snd_ctl_elem_value_t *value) |
Set value for an HCTL element. | |
snd_hctl_t * | snd_hctl_elem_get_hctl (snd_hctl_elem_t *elem) |
Get HCTL handle for an HCTL element. | |
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. | |
unsigned int | snd_hctl_elem_get_numid (const snd_hctl_elem_t *obj) |
Get element numeric identifier of a CTL element id/value. | |
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. | |
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. | |
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. | |
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. | |
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. | |
void | snd_hctl_elem_set_callback (snd_hctl_elem_t *obj, snd_hctl_elem_callback_t val) |
Set callback function for an HCTL element. | |
void | snd_hctl_elem_set_callback_private (snd_hctl_elem_t *obj, void *val) |
Set callback private value for an HCTL element. | |
void * | snd_hctl_elem_get_callback_private (const snd_hctl_elem_t *obj) |
Get callback private value for an HCTL element. |
Abramo Bagnara <abramo@alsa-project.org>
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set async mode
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