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>

1 files changed, 4 insertions, 0 deletions

diff --git a/include/asm-x86/ioctls.h b/include/asm-x86/ioctls.h
index 1a8ac45b28be..06752a649044 100644
--- a/include/asm-x86/ioctls.h
+++ b/include/asm-x86/ioctls.h
@@ -56,6 +56,10 @@
 #define TIOCGPTN        _IOR('T', 0x30, unsigned int)
                                 /* Get Pty Number (of pty-mux device) */
 #define TIOCSPTLCK      _IOW('T', 0x31, int)  /* Lock/unlock Pty */
+#define TCGETX          0x5432 /* SYS5 TCGETX compatibility */
+#define TCSETX          0x5433
+#define TCSETXF         0x5434
+#define TCSETXW         0x5435
 
 #define FIONCLEX        0x5450
 #define FIOCLEX         0x5451