|
I can just flatten it with the original firmware. I wanted to pull clean images anyways so not really a big thing. There's nothing important on it yet and it also doesn't have to have access to anything. Need to install the Android SDK to get into that.
I don't think the interactive governor is that bad I just think it could use some better tuning, I am not really all that familiar with it and good information is not a quick google away so I need to do some research. I'm positive the ondemand governor is too agressive in setting high clocks, which does make the device very responsive (the line has no problem keeping up and staying under the tip of the stylus in the notetaking-app for example) but even without much testing simply can't be great for battery life. I also noticed the tablet (which I will call this reader from now on, because it is) is constantly doing a lot of things in the background and that needs also some research because that certainly is not good for battery life either.
I would agree with a cheap, very low powered SoC if this was a simple eReader and sold as such, it is not really though, there's even android 6 development and usage of normal apps advertised on the page, to me it seems a little like Onyx themselves didn't know if they wanted to do an eReader or more and were a little bit too careful about the tablet part. It is a pretty unique device and I know that there are not really comparable options (especially not at that size) right now and I feel probably not in the future either. I know the screen is very expensive, I was looking into building something myself but then more or less figured that nothing I'd do myself would be better and most of all not cheaper than this. My solution would've also certainly not been that mobile. It was the best option, it's just a bit frustrating because it could have been more and I would have paid for more although I can understand they would be worried about straying too far from the eReader market, I wonder if this device is much of a success as is.
My personal plan was and is to use it as kind of a smart terminal (as opposed to a dumb terminal for people still familiar with that term) basically running SSH in Termux, with a mix of local programs and scripts if the need arises. I don't really plan to use the HDMI connector as I'll stay strictly in text mode, and it simply isn't necessary. Two hints for Termux: Base16-Greyscale and TERM=linux (as opposed to its 256 color emulation) gives you a few, well distinguishable shades of grey in lieu of colors. Also you can replace font.ttf in the termux folder and install any font you want.
Even after lots of searching I am afraid the driver simply doesn't expose charging control. I found every other important info about the battery, just nothing I can poke to affect the charging. I also wonder if there ever was an Accelerometer planned for it or if there even is one integrated but non-working. I haven't followed the development, somebody knows?
Another (a bit rundabout) solution would be to attach it to a powered USB hub which supports per-port power switching, which as the name suggests means the ports can be individually have their power toggled on and off programmatically. The exercise here would be then to write a bash script that runs on the tablet and keeps switching power on and off depending on where it is in the charging circle automatically. (somewhere in the 40% battery range) The downside here is that while most hub controllers can do it in theory, most hubs lack the actual parts to do it for cost cutting measures. Most manufacturers don't even bother rewriting the firmware and hubs will advertise the function while nothing happens when toggling it. Lots of hubs also only cut data lines on port switching and keep the +5 VBUS untouched, so you can't toggle the charging off. Good research is necessary and a fitting hub will not be a cheap one. Some hubs will also cut off everything which wouls also disable usb networking.
|