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Old 06-02-2014, 09:48 AM   #1
dicalp
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What is the code for eips ''?

anybody knows the c program syntax for eips ''?

i find my screen not display until i issue eips '' on the console.

any hint is appreciated.
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Old 06-02-2014, 09:59 AM   #2
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Originally Posted by dicalp View Post
anybody knows the c program syntax for eips ''?

i find my screen not display until i issue eips '' on the console.

any hint is appreciated.
Read the execution flow (if wrapped by a script) until you hit the binary implementation.
Then use strace on the binary.

- - - -

Yes, we have strace built for your device on this forum.

- - - -

And yes, there is such a thing as a free lunch - -
There are many man-years of software development and description available here, all of it at no cost.

Provided the user is willing to look for it - see:
http://www.mobileread.com/forums/sho...d.php?t=237083
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Old 06-03-2014, 02:15 AM   #3
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I don't think that "eips" is open source software. So knc1's advice applies. @dicalp: are you talking about something you wrote? Then look at other software as a starting point. E-ink screens need more than just shuffling bits in the framebuffer memory.
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Old 06-03-2014, 05:07 AM   #4
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ok .. i was hoping for working source codes.
http://www.mobileread.com/forums/sho...d.php?t=162743

yes. still no free lunch. have to write my own code.

strace can be easily compiled when scratchbox is working (appreciate all the people who contributed to gnu). those who cannot even compile strace probably can't do much even given the code.

thanks anyway.

Last edited by dicalp; 06-03-2014 at 05:10 AM.
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Old 06-03-2014, 07:08 AM   #5
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strace merely tells you what eips does (in terms of the kernel/userland API). You need to write your own code, that's for sure. But there are (lots!) of working code to trigger eink refreshes. Every native application published here in this forum has such code. Remember that the API changed between K3 and K4 (slightly, einkfb.h) and K5/KPW/KPW2 (a lot, mxcfb.h). Basically, it's a single ioctl, with a properly filled struct specifying the region to refresh.
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Old 06-03-2014, 07:17 AM   #6
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Originally Posted by dicalp View Post
ok .. i was hoping for working source codes.
http://www.mobileread.com/forums/sho...d.php?t=162743

yes. still no free lunch. have to write my own code.
- - - -
?????
Quote:
Originally Posted by dicalp
- - - -
any hint is appreciated.
Is what you asked for and that is what you got.

There is no way we can tell what you are "hoping for" unless you put it into the writing of your post.

Please review:
http://www.gerv.net/hacking/how-to-ask-good-questions/

With that guidance, you can start over at the start, with just what it is you are trying to achieve.
(And if it is, or will be, closed source software - don't expect a lot of help here.)
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