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1da177e4 | 1 | /* |
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2 | * Unified handling of special chars. |
3 | * | |
a53c8fab | 4 | * Copyright IBM Corp. 2001 |
1da177e4 LT |
5 | * Author(s): Fritz Elfert <felfert@millenux.com> <elfert@de.ibm.com> |
6 | * | |
7 | */ | |
8 | ||
9 | #include <linux/tty.h> | |
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10 | #include <linux/sysrq.h> |
11 | #include <linux/workqueue.h> | |
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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) | |
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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 |