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I don't know why that makes you paranoid instead of simply interested in seeing what answers are provided.
If the question is interesting, I'll usually revisit it to see what other answers have been provided.
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Sure. Sometimes the questor adds further detail which may affect the answer.
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And sometimes they completely change the question, making all of the existing answers look like they're from a different thread.
"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer
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I knew a paranerds does that count?
Bukaroo Banzai
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The AXP192 is a power management module for devices like tablets that run on batteries.
It is an I2C device that accepts commands and returns data over the I2C bus.
The datasheet has a schematic but the commands aren't documented at all.
I did however, find this:
GitHub - tuupola/axp192: Platform agnostic I2C driver for AXP192 power system management IC[^]
Yay, IOCTL commands. It feels like 1986 again.
*sigh*
If I get any of this wrong I brick my new $60 USD device.
*cracks knuckles*
Here there be dragons.
To err is human. Fortune favors the monsters.
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Are the commands proprietary, and that's why they're not publicly documented?
The difficult we do right away...
...the impossible takes slightly longer.
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I don't think it's proprietary. Either I haven't found the full datasheet, which is possibly not in English, or the Datasheet they provided is simply not complete.
To err is human. Fortune favors the monsters.
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There's a 53 page pdf in Chinese at several places on the web (for instance https://www.alldatasheet.com/view.jsp?Searchword=AXP192[^]) . Looks like it has some information that might be of use. The section entitled "Registers" is almost half the whole thing, so there is probably good stuff in there if you can decode it (or find someone who can).
Cheers,
Peter
Software rusts. Simon Stephenson, ca 1994. So does this signature. me, 2012
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This is what I get when I try to view it.
Warning[^]
Edit: Never mind, it's back up now. Thanks!
To err is human. Fortune favors the monsters.
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Wordle 393 5/6
⬜⬜⬜⬜⬜
⬜⬜⬜⬜⬜
⬜🟩⬜⬜🟩
⬜🟩⬜⬜🟩
🟩🟩🟩🟩🟩
"If we don't change direction, we'll end up where we're going"
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Wordle 393 4/6
🟨⬜⬜⬜⬜
⬜⬜⬜⬜⬜
⬜⬜⬜🟩🟩
🟩🟩🟩🟩🟩
My third starter is usually for elimination....
Software rusts. Simon Stephenson, ca 1994. So does this signature. me, 2012
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Wordle 393 6/6
🟨⬜⬜⬜⬜
⬜🟩⬜⬜⬜
⬜🟩⬜⬜⬜
⬜🟩⬜⬜⬜
⬜🟩⬜⬜🟩
🟩🟩🟩🟩🟩
Just made it.
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Not an easy one!
Wordle 393 5/6
⬜⬜⬜⬜🟨
⬜⬜🟨⬜⬜
⬜🟩⬜⬜🟩
⬜🟩🟨🟩🟩
🟩🟩🟩🟩🟩
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
"Common sense is so rare these days, it should be classified as a super power" - Random T-shirt
AntiTwitter: @DalekDave is now a follower!
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Wordle 393 3/6
🟨⬛🟨⬛⬛
⬛⬛🟩🟨⬛
🟩🟩🟩🟩🟩
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Wordle 393 4/6
⬜🟨⬜⬜⬜
⬜⬜⬜⬜🟩
⬜⬜⬜⬜🟩
🟩🟩🟩🟩🟩
a lucky guess
Life should not be a journey to the grave with the intention of arriving safely in a pretty and well-preserved body, but rather to skid in broadside in a cloud of smoke, thoroughly used up, totally worn out, and loudly proclaiming “Wow! What a Ride!" - Hunter S Thompson - RIP
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Quote: grey grey grey
I don`t know for sure what you had in mind when you wrote that, but if it is what I think it is than your statement is accurate for the most part except the ending, the ending does have color and diversity.
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Wordle 393 3/6
⬛🟩🟨⬛⬛
🟨🟩⬛⬛🟩
🟩🟩🟩🟩🟩
Get me coffee and no one gets hurt!
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Wordle 393 6/6
⬜⬜⬜⬜⬜
🟨⬜⬜⬜⬜
⬜⬜⬜⬜🟩
🟨🟩⬜⬜🟩
⬜🟩⬜🟨⬜
🟩🟩🟩🟩🟩
PHEW!
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Wordle 393 4/6
⬛⬛🟨⬛⬛
⬛🟩⬛⬛⬛
⬛🟩⬛🟩🟩
🟩🟩🟩🟩🟩
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I am consistently 0/0.
>64
Some days the dragon wins. Suck it up.
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Wordle 393 4/6
⬜⬜⬜⬜⬜
🟩⬜⬜⬜🟩
🟩⬜🟨⬜⬜
🟩🟩🟩🟩🟩
"A little time, a little trouble, your better day"
Badfinger
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I just got a neat little IoT widget but the screen appears to have been wired up to it at gunpoint.
A critical control line (RST on the display) is connected not directly to the MCU, but to a control line (IO4) on the power management circuit for the device. Because of this, the display has to be in part indirectly operated by fiddling with the power system on the device. My existing display drivers simply don't account for such a situation, so I have to fork a driver just for this device.
The source code provided for this device is not accurate to the device - meaning it doesn't work with it. I suspect there was an earlier edition of this device that was wired differently.
I'm in one of those positions where I have to write a bunch of code only to hope it will work when I'm done with it. 
And a question just occurred to me.
I have a core driver that is general purpose but mostly works with this device. I could take a callback as one of the template parameters to mess with the RST pin but it adds complexity to the general purpose driver.
The other option is forking the driver for this device.
Anyone have any opinions on that?
To err is human. Fortune favors the monsters.
modified 16-Jul-22 10:52am.
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And as soon as you finish they'll correct their mistake and it all will be for naught.
The most expensive tool is a cheap tool. Gareth Branwyn
JaxCoder.com
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Mike Hanley said And as soon as you finish they'll correct their mistake and it all will be for naught.
So true. . .
But, if you don’t complete the work, they’ll never correct their mistake.
~Engineer’s Paradox 
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