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authorAlan Cox <alan@redhat.com>2008-10-13 10:38:18 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2008-10-13 09:51:40 -0700
commit1d65b4a088de407e99714fdc27862449db04fb5c (patch)
tree89f378767b9e0fe1a902d73bf43be382c6110f72 /include/linux/tty_driver.h
parent5aaa70a80f5bbfcc4d6a1f844bdd1c5d6b445b5f (diff)
downloadlwn-1d65b4a088de407e99714fdc27862449db04fb5c.tar.gz
lwn-1d65b4a088de407e99714fdc27862449db04fb5c.zip
tty: Add termiox
We need a way to describe the various additional modes and flow control features that random weird hardware shows up and software such as wine wants to emulate as Windows supports them. TCGETX/TCSETX and the termiox ioctl are a SYS5 extension that we might as well adopt. This patches adds the structures and the basic ioctl interfaces when the TCGETX etc defines are added for an architecture. Drivers wishing to use this stuff need to add new methods. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/tty_driver.h')
-rw-r--r--include/linux/tty_driver.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/tty_driver.h b/include/linux/tty_driver.h
index 16d27944c321..ac6e58e26b73 100644
--- a/include/linux/tty_driver.h
+++ b/include/linux/tty_driver.h
@@ -180,6 +180,14 @@
* not force errors here if they are not resizable objects (eg a serial
* line). See tty_do_resize() if you need to wrap the standard method
* in your own logic - the usual case.
+ *
+ * void (*set_termiox)(struct tty_struct *tty, struct termiox *new);
+ *
+ * Called when the device receives a termiox based ioctl. Passes down
+ * the requested data from user space. This method will not be invoked
+ * unless the tty also has a valid tty->termiox pointer.
+ *
+ * Optional: Called under the termios lock
*/
#include <linux/fs.h>
@@ -220,6 +228,7 @@ struct tty_operations {
unsigned int set, unsigned int clear);
int (*resize)(struct tty_struct *tty, struct tty_struct *real_tty,
struct winsize *ws);
+ int (*set_termiox)(struct tty_struct *tty, struct termiox *tnew);
#ifdef CONFIG_CONSOLE_POLL
int (*poll_init)(struct tty_driver *driver, int line, char *options);
int (*poll_get_char)(struct tty_driver *driver, int line);