34 lines
1 KiB
Plaintext
Executable file
34 lines
1 KiB
Plaintext
Executable file
Input: sysrq reset sequence
|
|
|
|
A simple binding to represent a set of keys as described in
|
|
include/uapi/linux/input.h. This is to communicate a sequence of keys to the
|
|
sysrq driver. Upon holding the keys for a specified amount of time (if
|
|
specified) the system is sync'ed and reset.
|
|
|
|
Key sequences are global to the system but all the keys in a set must be coming
|
|
from the same input device.
|
|
|
|
The /chosen node should contain a 'linux,sysrq-reset-seq' child node to define
|
|
a set of keys.
|
|
|
|
Required property:
|
|
sysrq-reset-seq: array of Linux keycodes, one keycode per cell.
|
|
|
|
Optional property:
|
|
timeout-ms: duration keys must be pressed together in milliseconds before
|
|
generating a sysrq. If omitted the system is rebooted immediately when a valid
|
|
sequence has been recognized.
|
|
|
|
Example:
|
|
|
|
chosen {
|
|
linux,sysrq-reset-seq {
|
|
keyset = <0x03
|
|
0x04
|
|
0x0a>;
|
|
timeout-ms = <3000>;
|
|
};
|
|
};
|
|
|
|
Would represent KEY_2, KEY_3 and KEY_9.
|