drivers/tty/tty_baudrate.c

49  *	Convert termios baud rate data into a speed. This should be called
52  *	function but should use ->c_[io]speed directly as they are updated.
64 	/* Magic token for arbitrary speed via c_ispeed/c_ospeed */  in tty_termios_baud_rate()
84  *	Convert termios baud rate data into a speed. This should be called
87  *	function but should use ->c_[io]speed directly as they are updated.
100 	/* Magic token for arbitrary speed via c_ispeed*/  in tty_termios_input_baud_rate()
122  *	@ibaud: input speed
123  *	@obaud: output speed
127  *	the actual speed selected when it differs from the speed requested
131  *	desired speed. We allow small margins and preserve as much of possible
157 		ibinput = 1;	/* An input speed was specified */  in tty_termios_encode_baud_rate()
160 	/* If the user asked for a precise weird speed give a precise weird  in tty_termios_encode_baud_rate()
161 	   answer. If they asked for a Bfoo speed they may have problems  in tty_termios_encode_baud_rate()
180 	 *	match then report back the speed as a POSIX Bxxxx value by  in tty_termios_encode_baud_rate()
218 		pr_warn_once("tty: Unable to return correct speed data as your architecture needs updating.\n");  in tty_termios_encode_baud_rate()
228  *	Update the current termios data for the tty with the new speed