Koreader running on Kobos (all of them, hopefully!) - Page 122

Ken Maltby · 10-21-2014, 08:42 AM

My Defaults:

KOBO_SCREEN_SAVER = "/mnt/onboard/.kobo/koreader/cracked.png"

Now I no longer get the "Suspended" message, it just crashes back the Kobo Start Menu.
This is with a .pdb ebook.

Luck;
Ken

WS64 · 10-21-2014, 09:53 AM

Quote:

Originally Posted by Ken Maltby

My Defaults:

KOBO_SCREEN_SAVER = "/mnt/onboard/.kobo/koreader/cracked.png"

Now I no longer get the "Suspended" message, it just crashes back the Kobo Start Menu.
This is with a .pdb ebook.

Maybe the PNG is corrupt?
But I have no idea what happens at PDB books, I guess it should also show the cover image from that (if there is one)

Ken Maltby · 10-21-2014, 10:05 AM

Quote:

Originally Posted by WS64

Maybe the PNG is corrupt?
But I have no idea what happens at PDB books, I guess it should also show the cover image from that (if there is one)

Actually, I did see the cover image from a .pdb book, for a few suspends, before getting the Suspend message all the time. ( It even did a good job of scaling the image to the AuraHD's screen.) I have been updating Koreader often lately, and am not sure where it started exactly.

If it is just me then I'll have to do some fiddling with it on my own, I probably got something out of whack, on my own.

Luck;
Ken

mementomori · 10-21-2014, 02:12 PM

the following line:

echo mem > /sys/power/state

in

mnt/onboard/.kobo/koreader/suspend.sh

puts me in the suspend screen forever. Perhaps this power management feature is not supported by our firmware. I am using a Kobo Aura H2O (3.7.0). In fact running this line from the telnet terminal causes my touchscreen and power button to become unresponsive. The only way out is to insert a pin on the hardware reset button.

Deleting this line fixes the problem. (perhaps the power consumption will not be as low as we want it to be, but i prefer this over the hang issue)

echo 1 > /sys/power/state-extended
sleep 2s
echo mem > /sys/power/state

P.S. this line doesn't seem to have any effect on the H2O:

echo 1 > /sys/power/state-extended

I guess this is supposed to deactivate the touch screen driver?

mementomori · 10-21-2014, 02:25 PM

Oh there was a post by Frenzie which I haven't tried:

Quote:

Sleep isn't working (and worse, breaks input), so you'll have to exit KOReader instead. If you replace the KSM suspend.sh by the one from vlasovsoftlauncher it seems to work, or you could run vlasovsoftlauncher and suspend from there.

mementomori · 10-21-2014, 02:29 PM

... nope, the one from vlasovsoftlauncher didn't work either. same effect.

Frenzie · 10-21-2014, 02:42 PM

"you'll have to exit KOReader instead"

But I am curious about what you're describing. You say your device may be suspending properly?

hawhill · 10-21-2014, 02:47 PM

when you remove

Code:

echo 1 > /sys/power/state-extended

then there just is no standby, isn't it? So what we would really have to do is to strace nickel or whatever in Kobo's software stack is managing power state for a "working" standby, I guess.

Oh if it only had a proper interface we could just call and be done...

mementomori · 10-21-2014, 02:50 PM

Quote:

Originally Posted by Frenzie

"you'll have to exit KOReader instead"

But I am curious about what you're describing. You say your device may be suspending properly?

Well it does pause with the [suspend] message in front and the frontlight off. But I don't think it goes to low-power state like you wanted.

mementomori · 10-21-2014, 02:54 PM

I tried strace on nickel's process ID, but didn't see any of those sys/power files opened. The only suspicious file written to is that ioctl file.

hawhill · 10-21-2014, 05:56 PM

I probably missed it, but what ioctl file? Can you paste the relevant lines from strace?

It might well be another process that is responsible for putting the device into standby. Maybe a signal is being sent via an IPC (inter process communication) message. In fact, that would be a clean approach, and I hope that such an interface exist and that we can plug into it. From a perspective of a Kobo developer, I would want to keep the hardware details out of Nickel and implement standby logic in a platform dependent hardware abstraction layer. But such a thing or its interface would have to be found...

mementomori · 10-22-2014, 01:49 AM

Quote:

Originally Posted by hawhill

I probably missed it, but what ioctl file? Can you paste the relevant lines from strace?

It might well be another process that is responsible for putting the device into standby. Maybe a signal is being sent via an IPC (inter process communication) message. In fact, that would be a clean approach, and I hope that such an interface exist and that we can plug into it. From a perspective of a Kobo developer, I would want to keep the hardware details out of Nickel and implement standby logic in a platform dependent hardware abstraction layer. But such a thing or its interface would have to be found...

these lines:

open("/dev/ntx_io", O_RDWR) = 24
ioctl(24, 0xf1, 0x5) = 0
close(24) = 0

there are many of them.

mementomori · 10-22-2014, 01:53 AM

complete strace (nickel H2O):

https://www.dropbox.com/s/6d3ago4wm8...2.out.txt?dl=0

i did suspend cycles during the run by pressing the power button.

mementomori · 10-22-2014, 03:54 AM

<whoops sorry that earlier post was a false alarm i deleted it> my suspend.sh still had my modifications..

Frenzie · 10-22-2014, 04:38 AM

Quote:

Originally Posted by mementomori

complete strace (nickel H2O):

https://www.dropbox.com/s/6d3ago4wm8...2.out.txt?dl=0

i did suspend cycles during the run by pressing the power button.

I believe the driver for that is implemented in arch/arm/mach-mx5/mx50_ntx_io.c (included from drivers/input/touchscreen/zforce_i2c.c). I think it's about detecting stuff like whether USB is plugged in, whether there's an extra SD card, and such.

Code:

$ sed -n '/ntx/,+2p' strace2.out.txt 
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x18)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x12)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0xe)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0xa)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x7)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x5)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x3)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x2)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x1)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0)                      = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x1)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x5)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x7)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x8)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x9)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0xb)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0xd)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0xf)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x11)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x13)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x16)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x18)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x1b)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x1e)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x18)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x12)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0xe)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0xa)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x7)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x5)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x3)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x2)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x1)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0)                      = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x1)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x5)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x7)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x8)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x9)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0xb)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0xd)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0xf)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x11)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x13)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x16)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x18)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x1b)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x1e)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 35
ioctl(35, 0xf1, 0x17)                   = 0
close(35)                               = 0
open("/dev/ntx_io", O_RDWR)             = 35
ioctl(35, 0xf1, 0x12)                   = 0
close(35)                               = 0
open("/dev/ntx_io", O_RDWR)             = 35
ioctl(35, 0xf1, 0xe)                    = 0
close(35)                               = 0
open("/dev/ntx_io", O_RDWR)             = 35
ioctl(35, 0xf1, 0xa)                    = 0
close(35)                               = 0
open("/dev/ntx_io", O_RDWR)             = 35
ioctl(35, 0xf1, 0x7)                    = 0
close(35)                               = 0
open("/dev/ntx_io", O_RDWR)             = 35
ioctl(35, 0xf1, 0x5)                    = 0
close(35)                               = 0
open("/dev/ntx_io", O_RDWR)             = 35
ioctl(35, 0xf1, 0x3)                    = 0
close(35)                               = 0
open("/dev/ntx_io", O_RDWR)             = 35
ioctl(35, 0xf1, 0x2)                    = 0
close(35)                               = 0
open("/dev/ntx_io", O_RDWR)             = 35
ioctl(35, 0xf1, 0x1)                    = 0
close(35)                               = 0
open("/dev/ntx_io", O_RDWR)             = 35
ioctl(35, 0xf1, 0)                      = 0
close(35)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x1e)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x18)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x12)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0xe)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0xa)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x8)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x5)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x3)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x2)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x1)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0)                      = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x1)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x5)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x7)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x8)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x9)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0xb)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0xd)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0xf)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x11)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x13)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x16)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x19)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x1b)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x1e)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 25
ioctl(25, 0xf1, 0)                      = 0
close(25)                               = 0
open("/dev/ntx_io", O_RDWR)             = 28
ioctl(28, 0xf1, 0x1e)                   = 0
close(28)                               = 0

0xf1 = 241

From the driver:

Code:

#define CM_FRONT_LIGHT_SET		241

My guess, this is the front light brightness being changed? I didn't see any of this in my own strace, but I only tested with the light off.

Edit: I can confirm I'm seeing exactly what I would expect to see when running an strace while increasing the brightness and lowering it again.

Code:

# sed -n '/ntx/,+2p' strace-nickel.txt
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x1)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x2)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x3)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x4)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x5)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x6)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x8)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x9)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0xa)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0xb)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0xc)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0xd)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0xe)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x10)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x11)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x12)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x13)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x15)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x17)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x18)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x1a)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x1b)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x1c)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x1e)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x20)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x21)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x23)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x25)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x27)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x28)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x29)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x2a)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x2b)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x2c)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x2e)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x2f)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x30)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x31)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x33)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x35)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x36)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x37)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x39)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x3a)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x3c)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x3d)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x3e)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x3f)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x41)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x43)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x44)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x45)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x46)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x48)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x49)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x4b)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x4c)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x4e)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x50)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x52)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x53)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x54)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x55)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x57)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x58)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x5a)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x5c)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x5e)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x60)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x61)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x62)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x63)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x64)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x62)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x61)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x5f)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x5c)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x5b)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x5a)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x57)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x56)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x54)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x52)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x4f)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x4d)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x4b)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x49)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x48)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x46)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x44)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x43)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x40)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x3e)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x3d)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x3b)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x3a)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x37)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x36)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x35)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x32)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x30)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x2f)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x2d)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x2b)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x2a)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x28)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x27)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x26)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x24)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x23)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x22)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x21)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x1f)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x1e)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x1c)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x1a)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x19)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x18)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x16)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x15)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x13)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x12)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x10)                   = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0xf)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0xe)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0xd)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0xc)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0xb)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0xa)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x9)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x7)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x5)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x4)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x3)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0x1)                    = 0
close(24)                               = 0
open("/dev/ntx_io", O_RDWR)             = 24
ioctl(24, 0xf1, 0)                      = 0
close(24)                               = 0

10-21-2014, 02:12 PM	#1819
mementomori Enthusiast Posts: 30 Karma: 13854 Join Date: Oct 2014 Device: Kobo Aura H20, Nook Simple Touch with Glowlight	the following line: echo mem > /sys/power/state in mnt/onboard/.kobo/koreader/suspend.sh puts me in the suspend screen forever. Perhaps this power management feature is not supported by our firmware. I am using a Kobo Aura H2O (3.7.0). In fact running this line from the telnet terminal causes my touchscreen and power button to become unresponsive. The only way out is to insert a pin on the hardware reset button. Deleting this line fixes the problem. (perhaps the power consumption will not be as low as we want it to be, but i prefer this over the hang issue) echo 1 > /sys/power/state-extended sleep 2s echo mem > /sys/power/state P.S. this line doesn't seem to have any effect on the H2O: echo 1 > /sys/power/state-extended I guess this is supposed to deactivate the touch screen driver? Last edited by mementomori; 10-21-2014 at 02:49 PM. Reason: bad news first.

10-22-2014, 03:54 AM	#1829
mementomori Enthusiast Posts: 30 Karma: 13854 Join Date: Oct 2014 Device: Kobo Aura H20, Nook Simple Touch with Glowlight	<whoops sorry that earlier post was a false alarm i deleted it> my suspend.sh still had my modifications.. Last edited by mementomori; 10-22-2014 at 04:06 AM. Reason: false alarm

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10-21-2014, 08:42 AM	#1816
Ken Maltby Wizard Posts: 4,466 Karma: 6900052 Join Date: Dec 2009 Location: The Heart of Texas Device: Boox Note2, AuraHD, PDA,	My Defaults: KOBO_SCREEN_SAVER = "/mnt/onboard/.kobo/koreader/cracked.png" Now I no longer get the "Suspended" message, it just crashes back the Kobo Start Menu. This is with a .pdb ebook. Luck; Ken

10-21-2014, 02:29 PM	#1821
mementomori Enthusiast Posts: 30 Karma: 13854 Join Date: Oct 2014 Device: Kobo Aura H20, Nook Simple Touch with Glowlight	... nope, the one from vlasovsoftlauncher didn't work either. same effect.

10-21-2014, 02:42 PM	#1822
Frenzie Wizard Posts: 1,758 Karma: 731681 Join Date: Oct 2014 Location: Antwerp Device: Kobo Aura H2O	"you'll have to exit KOReader instead" But I am curious about what you're describing. You say your device may be suspending properly?

10-21-2014, 02:47 PM	#1823
hawhill Wizard Posts: 1,379 Karma: 2155307 Join Date: Nov 2010 Location: Goettingen, Germany Device: Kindle Paperwhite, Kobo Mini	when you remove Code: echo 1 > /sys/power/state-extended then there just is no standby, isn't it? So what we would really have to do is to strace nickel or whatever in Kobo's software stack is managing power state for a "working" standby, I guess. Oh if it only had a proper interface we could just call and be done...

10-21-2014, 02:54 PM	#1825
mementomori Enthusiast Posts: 30 Karma: 13854 Join Date: Oct 2014 Device: Kobo Aura H20, Nook Simple Touch with Glowlight	I tried strace on nickel's process ID, but didn't see any of those sys/power files opened. The only suspicious file written to is that ioctl file.

10-21-2014, 05:56 PM	#1826
hawhill Wizard Posts: 1,379 Karma: 2155307 Join Date: Nov 2010 Location: Goettingen, Germany Device: Kindle Paperwhite, Kobo Mini	I probably missed it, but what ioctl file? Can you paste the relevant lines from strace? It might well be another process that is responsible for putting the device into standby. Maybe a signal is being sent via an IPC (inter process communication) message. In fact, that would be a clean approach, and I hope that such an interface exist and that we can plug into it. From a perspective of a Kobo developer, I would want to keep the hardware details out of Nickel and implement standby logic in a platform dependent hardware abstraction layer. But such a thing or its interface would have to be found...

10-22-2014, 01:53 AM	#1828
mementomori Enthusiast Posts: 30 Karma: 13854 Join Date: Oct 2014 Device: Kobo Aura H20, Nook Simple Touch with Glowlight	complete strace (nickel H2O): https://www.dropbox.com/s/6d3ago4wm8...2.out.txt?dl=0 i did suspend cycles during the run by pressing the power button.