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Function rc_uart_get_fd

Function Documentation

int rc_uart_get_fd(int bus)

Fetches the file descriptor to a uart bus after the bus has been initialized.

This is so the user can optionally do additional configuration or IO operations on the bus.

Parameters

bus – [in] The bus number /dev/ttyO{bus}

Returns

the file descriptor to /dev/ttyO{bus} or -1 on error