[root@Sailfish nemo]# evdev_trace -i
[...]
----====( /dev/input/event8 )====----
Name: "gpio-keys"
ID: bus 0x19, vendor, 0x1, product 0x1, version 0x100
Type 0x00 (EV_SYN)
Type 0x01 (EV_KEY)
	 KEY_VOLUMEUP KEY_WEIBO KEY_00fb KEY_00fc
[...]


### Closing then opening the cover

[root@Sailfish nemo]# evdev_trace  -t /dev/input/event8
/dev/input/event8: 8358.491 - 0x01/EV_KEY - 0x0fb/KEY_00fb - 1
/dev/input/event8: 8358.491 - 0x00/EV_SYN - 0x000/SYN_REPORT - 0
/dev/input/event8: 8358.491 - 0x01/EV_KEY - 0x0fb/KEY_00fb - 0
/dev/input/event8: 8358.491 - 0x00/EV_SYN - 0x000/SYN_REPORT - 0

/dev/input/event8: 8361.041 - 0x01/EV_KEY - 0x0fa/KEY_WEIBO - 1
/dev/input/event8: 8361.041 - 0x00/EV_SYN - 0x000/SYN_REPORT - 0
/dev/input/event8: 8361.041 - 0x01/EV_KEY - 0x0fa/KEY_WEIBO - 0
/dev/input/event8: 8361.041 - 0x00/EV_SYN - 0x000/SYN_REPORT - 0