| 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. |
