ASYNC_SPLIT_TERMIOS behavior is a remnant of the long-dead /dev/cuaXX
callout device. Split termios handling was removed tree-wide in v2.5.71 by:
commit
99a21edebbfd8c29e39ee7fcc8a1ffa423657290
Author: Alexander Viro <viro@www.linux.org.uk>
Date: Wed Jun 11 07:41:28 2003 -0700
[PATCH] tty_driver refcounting
killed the last remnants of callout stuff - we don't need to mess with
storing termios privately anymore.
which pre-dated the re-introduction into the cris serial driver
in v2.6.7 by:
commit
311a5ffeda8ccb3f1f3840069f37234e043092d4
Author: Andrew Morton <akpm@osdl.org>
Date: Mon May 31 18:52:29 2004 -0700
[PATCH] CRIS architecture update
From: "Mikael Starvik" <mikael.starvik@axis.com>
- Lots of fixes from 2.4.
- Updated for 2.6.6.
- Added IDE driver
Cc: Mikael Starvik <starvik@axis.com>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
return;
}
info->port.flags |= ASYNC_CLOSING;
- /*
- * Save the termios structure, since this port may have
- * separate termios for callout and dialin.
- */
- if (info->port.flags & ASYNC_NORMAL_ACTIVE)
- info->normal_termios = tty->termios;
/*
* Now we wait for the transmit buffer to clear; and we notify
* the line discipline to only process XON/XOFF characters.
return retval;
}
- if ((info->port.count == 1) && (info->port.flags & ASYNC_SPLIT_TERMIOS)) {
- tty->termios = info->normal_termios;
- change_speed(info);
- }
-
#ifdef SERIAL_DEBUG_OPEN
printk("rs_open ttyS%d successful...\n", info->line);
#endif
info->custom_divisor = 0;
info->x_char = 0;
info->event = 0;
- info->normal_termios = driver->init_termios;
info->xmit.buf = NULL;
info->xmit.tail = info->xmit.head = 0;
info->first_recv_buffer = info->last_recv_buffer = NULL;
struct work_struct work;
struct async_icount icount; /* error-statistics etc.*/
- struct ktermios normal_termios;
unsigned long char_time_usec; /* The time for 1 char, in usecs */
unsigned long flush_time_usec; /* How often we should flush */