eCosPro® Reference Manual
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# tcp_arg()

## Name

tcp_arg() -- Set the application connection state

## Synopsis

``void tcp_arg`(struct tcp_pcb *pcb, void *arg);`

## Description

The `tcp_arg()` function specifies the program specific state that should be passed to all other callback functions. The "pcb" argument is the current TCP connection control block, and the "arg" argument is the argument that will be passed to the callbacks.

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Callbacks | Up | TCP connection setup