Can't get power button to work
#12
(08-28-2016, 02:45 AM)AidenH Wrote: Just an update - I tried to test the input of the power button using evtest in Ubuntu and nothing is showing up when I push the button - not for the button soldered to the connection points at the front or for the button connect to the EXP connector. Should this be working in Ubuntu or am I doing something wrong? I think I'm going to try and Andriod image to see if the power button is actually work properly.

As Mark indicated, it does work... the trick is to to select the right device. 

You can see in the code box below the output from running evtest on a ubuntu box, and selecting axp81x-supplyer, which was device event number 1 in that case. Credit goes to xalius for posting it in that thread I linked earlier about the power button. The button was pressed twice, so you can see a 1 when it was pressed, and a 0 when it is released. 

Code:
ubuntu@pine64:~$ sudo evtest

No device specified, trying to scan all of /dev/input/event*
Available devices:
/dev/input/event0:      sunxi-keyboard
/dev/input/event1:      axp81x-supplyer
/dev/input/event2:      sunxi-ths
/dev/input/event3:      audiocodec sunxi Audio Jack
/dev/input/event4:      sunxi_ir_recv
/dev/input/event5:      MCE IR Keyboard/Mouse (sunxi-rc-recv)

Select the device event number [0-5]: 1

Input driver version is 1.0.1
Input device ID: bus 0x19 vendor 0x1 product 0x1 version 0x100
Input device name: "axp81x-supplyer"
Supported events:
 Event type 0 (EV_SYN)
 Event type 1 (EV_KEY)
   Event code 116 (KEY_POWER)
 Event type 2 (EV_REL)
Properties:
Testing ... (interrupt to exit)
Event: time 1466799328.888825, type 1 (EV_KEY), code 116 (KEY_POWER), value 1
Event: time 1466799328.888825, -------------- SYN_REPORT ------------
Event: time 1466799328.999256, type 1 (EV_KEY), code 116 (KEY_POWER), value 0
Event: time 1466799328.999256, -------------- SYN_REPORT ------------
Event: time 1466799329.630542, type 1 (EV_KEY), code 116 (KEY_POWER), value 1
Event: time 1466799329.630542, -------------- SYN_REPORT ------------
Event: time 1466799329.798206, type 1 (EV_KEY), code 116 (KEY_POWER), value 0
Event: time 1466799329.798206, -------------- SYN_REPORT ------------


Messages In This Thread
Can't get power button to work - by AidenH - 08-27-2016, 08:46 PM
RE: Can't get power button to work - by pfeerick - 08-27-2016, 09:11 PM
RE: Can't get power button to work - by pfeerick - 08-27-2016, 10:58 PM
RE: Can't get power button to work - by pfeerick - 08-28-2016, 01:08 AM
RE: Can't get power button to work - by AidenH - 08-27-2016, 11:38 PM
RE: Can't get power button to work - by AidenH - 08-28-2016, 02:45 AM
RE: Can't get power button to work - by pfeerick - 08-28-2016, 04:07 AM
RE: Can't get power button to work - by AidenH - 08-28-2016, 04:49 AM
RE: Can't get power button to work - by AidenH - 08-28-2016, 05:10 AM
RE: Can't get power button to work - by DonFL - 08-28-2016, 05:13 AM
RE: Can't get power button to work - by DonFL - 08-28-2016, 07:19 AM

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