1 Input: sysrq reset sequence
2
3 A simple binding to represent a set of keys as described in
4 include/uapi/linux/input.h. This is to communicate a sequence of keys to the
5 sysrq driver. Upon holding the keys for a specified amount of time (if
6 specified) the system is sync'ed and reset.
7
8 Key sequences are global to the system but all the keys in a set must be coming
9 from the same input device.
10
11 The /chosen node should contain a 'linux,sysrq-reset-seq' child node to define
12 a set of keys.
13
14 Required property:
15 keyset: array of Linux keycodes, one keycode per cell.
16
17 Optional property:
18 timeout-ms: duration keys must be pressed together in milliseconds before
19 generating a sysrq. If omitted the system is rebooted immediately when a valid
20 sequence has been recognized.
21
22 Example:
23
24 chosen {
25 linux,sysrq-reset-seq {
26 keyset = <0x03
27 0x04
28 0x0a>;
29 timeout-ms = <3000>;
30 };
31 };
32
33 Would represent KEY_2, KEY_3 and KEY_9.
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