ChanServ changed the topic of #cubieboard to: is BUY NOW! - http://cubieboard.org - http://linux-sunxi.org/Cubieboard - logs: http://irclog.whitequark.org/cubieboard http://ibot.rikers.org/%23cubieboard/ - development wiki for chips cubieboards run on http://linux-sunxi.org/
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<yaswanth> hi
<yaswanth> I am working on Cubie with Android. Can anyone tell me about accessing GPIOs in Java/Python?
<yaswanth> Googling online leads to deadends
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<FR^2> uff
<FR^2> yaswanth: I think you'll have to apply some low-level patches to the kernel used by android to access any hardware directly
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<yaswanth> Just an update: I was able to SSH into android, get into root and was able to read gpio labels
<yaswanth> For this I had to install the Super User App to get it going till here
<yaswanth> I am still not able to figure out if I can read the data from GPIO
<yaswanth> Since I am able to read it as root, I was thinking there should be a way where a javalib is available to access these GPIOs
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<FR^2> yaswanth: wow.
<yaswanth> Is that too much to ask?
<FR^2> yaswanth: "Wow!" in the sense of "Wow, you got that far!"
<yaswanth> lol. Thanks :)
<yaswanth> Surprised this info isn't available anywhere
<FR^2> yaswanth: I'm not sure if there's any standard library for that. But if you manage to access the signals from command line, the rest shouldn't be a problem
<yaswanth> it shouldn't be a problem true, but was wondering if Android's app system will let me write to these 'files'
<FR^2> Not sure... I'm far from such things... How do you manage the access? Are there devices? Or is it via proc or sysfs or something?
<yaswanth> Did an ssh to android on cubie
<yaswanth> installed super user app
<yaswanth> su - got me into root
<yaswanth> and from there on it was in /sys/class/gpio
<Grogdor> finally got a proper powered usb hub, plug in rtl-sdr, fire up dump1090... no planes, anywhere... fml
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<Thhunder> hi there :)
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<Thhunder> someone here to get talk about cubieboard 2 ?
<FR^2> Don't ask to ask, just ask (as clearly as possible) then wait - patience is mandatory :)
<Thhunder> ok :) i had an 2,5" s-ata hdd on my cubieboard and powered up over the 3,5 jack with 2,5A @ 5V sometimes it crashes or hang up so if i power up my cubie2 over the 3,5 jack + usb-otg i have no problem with crashes so is there a reason why or what hapend?
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<grog> hard drives pull a lot of power. cubieboards are really finicky about power.
<grog> more amps, more filter caps, more powered usb hubs
<grog> im not sure if powering over the jack and usb at the same time is a good idea
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<Thhunder> grog, it was my option to stop the crashes... because if i had some power peaks it seems like to be there is a failure if the voltage gets under x volt i think i need to check it but i haven't the corret tools to test it out :(
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<grog> well yeah, that's exactly what happens
<grog> cheap power supplies have too much noise/ripple, poor regulation or simply not enough juice
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<grog> ive gone through three USB hubs and five different PSUs to make my cubieboard A10 work reliably
<grog> but im currently in asia, so finding quality electronics is a challenge
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<Thhunder> so is it not an good option to power it up over 3,5 jack + usb-otg? on my "stress-tests" it was my best choice to hold it in a stable state so it does not freeze or hangup anyway so it runs stable the last 4 days before i did that i had 3 - 5 hours and on some aktivitys it was down
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<grog> dunno man, would hafta look at the circuit diagram, but there's a good chance those two power supplies get connected in parallel along the line
<grog> which is kinda "good" because the board has more/stable power, but it's kinda messy because power supplies generally shouldn't be wired like that
<grog> might fry something, eventually
<grog> probably one of the power supplies, and maybe take the board with it
<grog> for the cost of a decent $10 power brick, i'd 'do it right' if possible
<grog> just my opinion :)
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<Thhunder> for me there is no extra powersuply i have one for the 3,5 jack and for the usb-otg i use my router to give there a bit power to hold it in an stable state, for now it works but i understand it is not the best option so i need a better powersuply for my cubie i think?
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<astr> with linux-sunix (linux 3.4) do you have a working driver for Atheros AR9271 (ath9k_htc) https://tehnoetic.com/tehnoetic-wireless-adapter-gnu-linux-libre-tet-n150
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