# tty_start_timer_callback

- **Language:** C
- **Kind:** function
- **Source:** https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/tty.c#L306
- **Page:** https://libtmux.org/en/tmux/latest/reference/c-function-tty-c-tty_start_timer_callback/

```c
static void tty_start_timer_callback(int, short, void *)
```

## Parameters

- `fd` (`int`)
- `events` (`short`)
- `data` (`void *`)

## Calls

- [`log_debug`](/en/tmux/latest/reference/c-function-log_debug/) (function) [Call site](https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/tty.c#L311)
- [`tty_update_features`](/en/tmux/latest/reference/c-function-tty_update_features/) (function) [Call site](https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/tty.c#L314)

## Referenced by

- [`tty_open`](/en/tmux/latest/reference/c-function-tty_open/) (function)

## Referenced declarations

- [`__unused`](/en/tmux/latest/reference/c-define-compat-h-__unused/) (constant)
- [`tty.client`](/en/tmux/latest/reference/c-struct-tty-client/) (attribute)
- [`tty.flags`](/en/tmux/latest/reference/c-struct-tty-flags/) (attribute)
- [`client.name`](/en/tmux/latest/reference/c-struct-client-name/) (attribute)
- [`TTY_ALL_REQUEST_FLAGS`](/en/tmux/latest/reference/c-define-tmux-h-tty_all_request_flags/) (constant)
- [`TTY_HAVEDA`](/en/tmux/latest/reference/c-define-tmux-h-tty_haveda/) (constant)
- [`TTY_HAVEDA2`](/en/tmux/latest/reference/c-define-tmux-h-tty_haveda2/) (constant)
- [`TTY_HAVEXDA`](/en/tmux/latest/reference/c-define-tmux-h-tty_havexda/) (constant)
- [`TTY_WAITBG`](/en/tmux/latest/reference/c-define-tmux-h-tty_waitbg/) (constant)
- [`TTY_WAITFG`](/en/tmux/latest/reference/c-define-tmux-h-tty_waitfg/) (constant)