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 #include <linux/sysrq.h> 11 #include <linux/workqueue.h> 12 13 extern unsigned int 14 ctrlchar_handle(const unsigned char *buf, int len, struct tty_struct *tty); 15 16 17 #define CTRLCHAR_NONE (1 << 8) 18 #define CTRLCHAR_CTRL (2 << 8) 19 #define CTRLCHAR_SYSRQ (3 << 8) 20 21 #define CTRLCHAR_MASK (~0xffu) 22 23 24 #ifdef CONFIG_MAGIC_SYSRQ 25 struct sysrq_work { 26 int key; 27 struct work_struct work; 28 }; 29 30 void schedule_sysrq_work(struct sysrq_work *sw); 31 #endif 32