|
ALSA project - the C library reference
|
|
ALSA project - the C library reference
|
HwDep Interface (hardware dependent) More...
Functions | |
| int | snd_hwdep_open (snd_hwdep_t **hwdep, const char *name, int mode) |
| Opens a new connection to the HwDep interface. More... | |
| int | snd_hwdep_open_lconf (snd_hwdep_t **hwdep, const char *name, int mode, snd_config_t *lconf) |
| Opens a new connection to the HwDep interface using local configuration. More... | |
| int | snd_hwdep_close (snd_hwdep_t *hwdep) |
| close HwDep handle More... | |
| const char * | snd_hwdep_name (snd_hwdep_t *hwdep) |
| get identifier of HwDep handle More... | |
| snd_hwdep_type_t | snd_hwdep_type (snd_hwdep_t *hwdep) |
| get type of HwDep handle More... | |
| int | snd_hwdep_poll_descriptors_count (snd_hwdep_t *hwdep) |
| get count of poll descriptors for HwDep handle More... | |
| int | snd_hwdep_poll_descriptors (snd_hwdep_t *hwdep, struct pollfd *pfds, unsigned int space) |
| get poll descriptors More... | |
| int | snd_hwdep_poll_descriptors_revents (snd_hwdep_t *hwdep, struct pollfd *pfds, unsigned int nfds, unsigned short *revents) |
| get returned events from poll descriptors More... | |
| int | snd_hwdep_nonblock (snd_hwdep_t *hwdep, int nonblock) |
| set nonblock mode More... | |
| size_t | snd_hwdep_info_sizeof () |
| get size of the snd_hwdep_info_t structure in bytes More... | |
| int | snd_hwdep_info_malloc (snd_hwdep_info_t **info) |
| allocate a new snd_hwdep_info_t structure More... | |
| void | snd_hwdep_info_free (snd_hwdep_info_t *info) |
| frees the snd_hwdep_info_t structure More... | |
| void | snd_hwdep_info_copy (snd_hwdep_info_t *dst, const snd_hwdep_info_t *src) |
| copy one snd_hwdep_info_t structure to another More... | |
| int | snd_hwdep_info_get_card (const snd_hwdep_info_t *obj) |
| get hwdep card number More... | |
| unsigned int | snd_hwdep_info_get_device (const snd_hwdep_info_t *info) |
| get hwdep device number More... | |
| const char * | snd_hwdep_info_get_id (const snd_hwdep_info_t *obj) |
| get hwdep driver identifier More... | |
| const char * | snd_hwdep_info_get_name (const snd_hwdep_info_t *obj) |
| get hwdep driver name More... | |
| snd_hwdep_iface_t | snd_hwdep_info_get_iface (const snd_hwdep_info_t *obj) |
| get hwdep protocol interface More... | |
| void | snd_hwdep_info_set_device (snd_hwdep_info_t *obj, unsigned int val) |
| set hwdep device number More... | |
| int | snd_hwdep_info (snd_hwdep_t *hwdep, snd_hwdep_info_t *info) |
| get information about HwDep handle More... | |
| int | snd_hwdep_ioctl (snd_hwdep_t *hwdep, unsigned int request, void *arg) |
| do hardware dependent ioctl More... | |
| ssize_t | snd_hwdep_write (snd_hwdep_t *hwdep, const void *buffer, size_t size) |
| write bytes using HwDep handle More... | |
| ssize_t | snd_hwdep_read (snd_hwdep_t *hwdep, void *buffer, size_t size) |
| read bytes using HwDep handle More... | |
| int | snd_hwdep_dsp_status (snd_hwdep_t *hwdep, snd_hwdep_dsp_status_t *info) |
| get the DSP status information More... | |
| int | snd_hwdep_dsp_load (snd_hwdep_t *hwdep, snd_hwdep_dsp_image_t *block) |
| load the DSP block More... | |
| size_t | snd_hwdep_dsp_status_sizeof () |
| get size of the snd_hwdep_dsp_status_t structure in bytes More... | |
| int | snd_hwdep_dsp_status_malloc (snd_hwdep_dsp_status_t **info) |
| allocate a new snd_hwdep_dsp_status_t structure More... | |
| void | snd_hwdep_dsp_status_free (snd_hwdep_dsp_status_t *info) |
| frees the snd_hwdep_dsp_status_t structure More... | |
| void | snd_hwdep_dsp_status_copy (snd_hwdep_dsp_status_t *dst, const snd_hwdep_dsp_status_t *src) |
| copy one snd_hwdep_dsp_status_t structure to another More... | |
| unsigned int | snd_hwdep_dsp_status_get_version (const snd_hwdep_dsp_status_t *obj) |
| get the driver version of dsp loader More... | |
| const char * | snd_hwdep_dsp_status_get_id (const snd_hwdep_dsp_status_t *obj) |
| get the driver id of dsp loader More... | |
| unsigned int | snd_hwdep_dsp_status_get_num_dsps (const snd_hwdep_dsp_status_t *obj) |
| get number of dsp blocks More... | |
| unsigned int | snd_hwdep_dsp_status_get_dsp_loaded (const snd_hwdep_dsp_status_t *info) |
| get the bit flags of the loaded dsp blocks More... | |
| unsigned int | snd_hwdep_dsp_status_get_chip_ready (const snd_hwdep_dsp_status_t *obj) |
| get the chip status of dsp loader More... | |
| size_t | snd_hwdep_dsp_image_sizeof () |
| get size of the snd_hwdep_dsp_image_t structure in bytes More... | |
| int | snd_hwdep_dsp_image_malloc (snd_hwdep_dsp_image_t **info) |
| allocate a new snd_hwdep_dsp_image_t structure More... | |
| void | snd_hwdep_dsp_image_free (snd_hwdep_dsp_image_t *info) |
| frees the snd_hwdep_dsp_image_t structure More... | |
| void | snd_hwdep_dsp_image_copy (snd_hwdep_dsp_image_t *dst, const snd_hwdep_dsp_image_t *src) |
| copy one snd_hwdep_dsp_image_t structure to another More... | |
| unsigned int | snd_hwdep_dsp_image_get_index (const snd_hwdep_dsp_image_t *obj) |
| get the DSP block index More... | |
| const char * | snd_hwdep_dsp_image_get_name (const snd_hwdep_dsp_image_t *obj) |
| get the name of the DSP block More... | |
| size_t | snd_hwdep_dsp_image_get_length (const snd_hwdep_dsp_image_t *obj) |
| get the length of the DSP block More... | |
| const void * | snd_hwdep_dsp_image_get_image (const snd_hwdep_dsp_image_t *obj) |
| get the image pointer of the DSP block More... | |
| void | snd_hwdep_dsp_image_set_index (snd_hwdep_dsp_image_t *obj, unsigned int index) |
| set the DSP block index More... | |
| void | snd_hwdep_dsp_image_set_name (snd_hwdep_dsp_image_t *obj, const char *name) |
| set the name of the DSP block More... | |
| void | snd_hwdep_dsp_image_set_length (snd_hwdep_dsp_image_t *obj, size_t length) |
| set the DSP block length More... | |
| void | snd_hwdep_dsp_image_set_image (snd_hwdep_dsp_image_t *obj, void *image) |
| set the DSP block image pointer More... | |
HwDep Interface (hardware dependent)
HwDep (hardware dependent) Interface is designed for individual hardware access. This interface does not cover any API specification.
| const char* snd_hwdep_name | ( | snd_hwdep_t * | hwdep | ) |
get identifier of HwDep handle
| hwdep | a Hwdep handle |
Returns the ASCII identifier of given HwDep handle. It's the same identifier specified in snd_hwdep_open().
| int snd_hwdep_open_lconf | ( | snd_hwdep_t ** | hwdep, |
| const char * | name, | ||
| int | mode, | ||
| snd_config_t * | lconf | ||
| ) |
Opens a new connection to the HwDep interface using local configuration.
| hwdep | Returned handle (NULL if not wanted) |
| name | ASCII identifier of the HwDep handle |
| mode | Open mode |
| lconf | The local configuration tree |
Opens a new connection to the HwDep interface specified with an ASCII identifier and mode.
| snd_hwdep_type_t snd_hwdep_type | ( | snd_hwdep_t * | hwdep | ) |
get type of HwDep handle
| hwdep | a HwDep handle |
Returns the type snd_hwdep_type_t of given HwDep handle.
1.8.5
