> ## Documentation Index
> Fetch the complete documentation index at: https://dragonwingdocs-staging.qualcomm.com/llms.txt
> Use this file to discover all available pages before exploring further.
# Us Gen API
**Header:** `spf/api/modules/us_gen_api.h`
## Structures
### `param_id_us_gen_struct_frequency_t`
**Members**
### `param_id_us_gen_duty_cycling_t`
**Members**
### `param_id_us_gen_codec_duty_cycling_t`
**Members**
### `param_id_us_gen_param_1_t`
**Members**
### `param_id_us_gen_param_2_t`
**Members**
## Type Definitions
### `param_id_us_gen_struct_frequency_t`
```cpp theme={null}
typedef struct param_id_us_gen_struct_frequency_t param_id_us_gen_struct_frequency_t
```
### `param_id_us_gen_duty_cycling_t`
```cpp theme={null}
typedef struct param_id_us_gen_duty_cycling_t param_id_us_gen_duty_cycling_t
```
### `param_id_us_gen_codec_duty_cycling_t`
```cpp theme={null}
typedef struct param_id_us_gen_codec_duty_cycling_t param_id_us_gen_codec_duty_cycling_t
```
### `param_id_us_gen_param_1_t`
```cpp theme={null}
typedef struct param_id_us_gen_param_1_t param_id_us_gen_param_1_t
```
### `param_id_us_gen_param_2_t`
```cpp theme={null}
typedef struct param_id_us_gen_param_2_t param_id_us_gen_param_2_t
```
## Macros
### `US_GEN_DATA_OUTPUT_PORT`
```c theme={null}
#define US_GEN_DATA_OUTPUT_PORT 0x1
```
### `US_GEN_DATA_MAX_INPUT_PORTS`
```c theme={null}
#define US_GEN_DATA_MAX_INPUT_PORTS 0x0
```
### `US_GEN_DATA_MAX_OUTPUT_PORTS`
```c theme={null}
#define US_GEN_DATA_MAX_OUTPUT_PORTS 0x1
```
### `US_GEN_MODULE_STACK_SIZE`
```c theme={null}
#define US_GEN_MODULE_STACK_SIZE 4096
```
### `PARAM_ID_EXAMPLE_US_GEN_TONE_FREQUENCY`
Parameter ID for US generation.
```c theme={null}
#define PARAM_ID_EXAMPLE_US_GEN_TONE_FREQUENCY 0x08001347
```
### `PARAM_ID_EXAMPLE_US_GEN_DUTY_CYCLING`
Parameter ID for enabling/disabling duty cycling.
```c theme={null}
#define PARAM_ID_EXAMPLE_US_GEN_DUTY_CYCLING 0x08001348
```
### `PARAM_ID_EXAMPLE_US_GEN_CODEC_DUTY_CYCLING`
Parameter ID for enabling/disabling codec duty cycling.
```c theme={null}
#define PARAM_ID_EXAMPLE_US_GEN_CODEC_DUTY_CYCLING 0x08001349
```
### `PARAM_ID_EXAMPLE_US_GEN_PARAM_1`
Parameter ID reserved for future use.
```c theme={null}
#define PARAM_ID_EXAMPLE_US_GEN_PARAM_1 0x08001350
```
### `PARAM_ID_EXAMPLE_US_GEN_PARAM_2`
Parameter ID reserved for future use.
```c theme={null}
#define PARAM_ID_EXAMPLE_US_GEN_PARAM_2 0x08001351
```
### `MODULE_ID_EXAMPLE_US_GEN`
```c theme={null}
#define MODULE_ID_EXAMPLE_US_GEN 0x070010D6
```