> ## 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.

# TTY CMN API

> This file contains api exposed to voice service in modem for tty modules.

**Header:** `spf/api/modules/tty_cmn_api.h`

## Structures

### `param_id_ltetty_char_t`

**Members**

<ParamField path="tty_char" type="uint32_t">
  In UTF-8 format.}
</ParamField>

### `event_id_ltetty_char_t`

**Members**

<ParamField path="tty_char" type="uint32_t">
  In UTF-8 format.}
</ParamField>

## Type Definitions

### `param_id_ltetty_char_t`

```cpp theme={null}
typedef struct param_id_ltetty_char_t param_id_ltetty_char_t
```

### `event_id_ltetty_char_t`

```cpp theme={null}
typedef struct event_id_ltetty_char_t event_id_ltetty_char_t
```

## Macros

### `PARAM_ID_LTETTY_CHAR`

```c theme={null}
#define PARAM_ID_LTETTY_CHAR 0x080011A8
```

### `EVENT_ID_LTETTY_CHAR`

```c theme={null}
#define EVENT_ID_LTETTY_CHAR 0x080011A9
```

### `PARAM_ID_CTM_RESYNC`

```c theme={null}
#define PARAM_ID_CTM_RESYNC 0x08001190
```