drivers/s390/char/ctrlchar.h

   1 /*
   2  *  Unified handling of special chars.
   3  *
   4  *    Copyright IBM Corp. 2001
   5  *    Author(s): Fritz Elfert <felfert@millenux.com> <elfert@de.ibm.com>
   6  *
   7  */
   8
   9 #include <linux/tty.h>
  10
  11 extern unsigned int
  12 ctrlchar_handle(const unsigned char *buf, int len, struct tty_struct *tty);
  13
  14
  15 #define CTRLCHAR_NONE  (1 << 8)
  16 #define CTRLCHAR_CTRL  (2 << 8)
  17 #define CTRLCHAR_SYSRQ (3 << 8)
  18
  19 #define CTRLCHAR_MASK (~0xffu)