unsigned int uart_get_baud_rate (struct uart_port * port, struct termios * termios, struct termios * old, unsigned int min, unsigned int max);
Decode the termios structure into a numeric baud rate, taking account of the magic 38400 baud rate (with spd_* flags), and mapping the B0 rate to 9600 baud.
If the new baud rate is invalid, try the old termios setting. If it's still invalid, we try 9600 baud.
Update the termios structure to reflect the baud rate we're actually going to be using.
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This documentation was generated with kernel version 2.6.0.