<marcusrxtx>
Hi! Not 100% sure if it's the right place to ask, but:
<marcusrxtx>
I need to interface a PS/2 "pointing stick" (mouse) to the A13. My PCB is quite cramped, and I have zero prior experience in writing Linux drivers. Q: Which might be the most painless solution; 1) 2x GPIO (via level converter) and write my own driver 2) Separate PS/2 - USB controller IC and use USB driver 3) Other suggestions?
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<libv>
marcusrxtx should've gone for usb from the getgo, and made his pointing stick independent of anything else
<tomboy64>
TheLinuxBug: beg your pardon?
<tomboy64>
oh
<tomboy64>
nvm
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<TheLinuxBug>
sry tagged wrong person :(
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<libv>
no gpl notice included.
<libv>
and what kind of asshole do you have to be not to populate the uart pins
<orly_owl>
saves a few cents per unit
<libv>
ah, no
<libv>
sorry
<libv>
he just has through holes for 4 uarts
<libv>
the primary uart is populated
<libv>
it looks pretty good though
<libv>
too bad that he's probably a big gpl violator
<libv>
SoMPi...
<libv>
$shit_pi indeed
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<libv>
dumping shop and wiki pages to pdf
<libv>
now for an email.
<libv>
sent.
<libv>
let the games begin :)
<vpeter>
That was some short email.
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<libv>
i just kindly asked for the source code
<libv>
no need to give any more away at this point :)
<buZz>
what device are you talking about?
<vpeter>
libv: I see. It is just first email of many.
<ssvb>
libv: their wiki page says - "The board support package contains all sources required to build the linux image for the ICnova A20 SODIMM on the main ADB"
<ssvb>
libv: I assume that if there is some problem with strictly following the GPL requirements, then they will probably fix this if asked politely
<ssvb>
libv: unless you start demanding the sources of all the closed source bits (libnand, cedar or whatever) if they happen to be included as part of their "board support package" :)
<NiteHawk>
that what i'd expect too - "their" biggest problem may be that they're violating the GPL by proxy due to what they can get from Allwinner
<NiteHawk>
"that's" even
<ssvb>
with A20 SoC, satisfying all the GPL requirements should not be very difficult
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<ssvb>
and we are talking about a SODIMM module here, so probably they don't care about graphics/multimedia
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<ssvb>
oh, they do have a HDMI connector, so they might have a good chance to play a European scapegoat role in all these GPL compliance games...
<libv>
ssvb: i have received the bare board(s)
<libv>
and nothing is available for download
<libv>
they were asked politely
<libv>
now i await their timely answer
<libv>
i have asked for the sources of the kernel and uboot
<libv>
i could go further, but something tells me that they might be slightly reluctant to reveal even that
<libv>
ssvb: i might be loud, and it might seem that i constantly do stupid things (as in, sticking my foot up everyones rear end), but it is not without a purpose and not without some strategic thought behind it
<libv>
and i mentioned earlier that i took pdf prints of all relevant pages
<libv>
ssvb: they kind of hint at not being willing to hand out uboot source
<libv>
seems like people do not need that, that their copy that they put in nand should be good enough
<ssvb>
but the source tarballs exist for their other non-Allwinner products
<libv>
yes, wait and see how they response
<libv>
they got their kind email
<libv>
now i wait
<libv>
s/response/respond/
<ssvb>
ok
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<libv>
ssvb: it does seem a pretty strange setup, something you would expect only a chinese company to do
<libv>
but this is dresden, a 4h trainride away, or a lawyers letter away
<ssvb>
or they just messed up and forgot to update the wiki
<libv>
but who knows, maybe it does not need to come to that
<libv>
they do seem to need a reminder of what their obligations are
<libv>
ssvb: the name of the thing, the fact that they claim this to be community hw like olimexino,cubieboard,bananapi, etc
<libv>
the lack of source code or documentation, ...
<libv>
that all fits the pattern of the chinese $shit_pis
<libv>
so wait and see
<libv>
and i really need to go start NDHing all those devices i have been ordering these last few months
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<f15h>
I just looked at the Datasheets of A10 and A20 and found that A10 supports 1080p60 HP H.264 encoding while A20 only supports 1080p30 HP H.264. Has anyone experienced this behaviour on real hardware?
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<marcusrxtx>
libv: Thanks for reply. (I'll go for the hardware solution. Pointing sticks are all PS/2 it seems.)
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<TheLinuxBug>
topi`: with the SYBA rai5 controller mort multiplier I am seeing about 35-38M/sec write haven't tested reads yet. But that honestly is a 10M/sec improvement already over software raid. Also less CPU overhead. So this might work out nice. 5x2TB HGST Ultrastar A7K2000 Raid5 on SYBA SY-PCI40037 SATA II (3.0Gb/s) 1:5 (5x1) Port Multiplier , BananaPi (A20) Running openmediavault bananian, I have recompiled kernel to enable PM card.
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<TheLinuxBug>
watching iotop does seem to burst to 43M/sec which is closer to the 45M/sec claimed max.
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<Inode>
is it fairly common for A23-based tablets to feature uboot configured without a 'Hit any key to stop autoboot' option?
<libv>
Inode: which a23 tablet would that be?
<Inode>
it's based on an "INET-D70-REV03" board
<Inode>
i've just soldered leads to +3.7V, GND, TX and RX
<Inode>
i'll paste bin UART output, although it seems the 'stop autoboot' timeout is reported as 0 without any count down and proceeds to start boot immediately
<Inode>
i have another A23 that probably isn't there either
<libv>
Inode: the new device howto guides you through some of the work needed for that, and through capturing necessary data and collecting info on a nice wiki page
<Inode>
thanks
<Inode>
well, i was given 3 tablets recently that have broken touchscreens
<libv>
it's sadly still mostly geared towards sunxi-3.4 kernel and sunxi-uboot
<Inode>
so i am not sure how much damage this particular device-under-abuse suffered apart from the wrecked digitizer
<libv>
but i guess that that will change only when i finally go and do the devices i bought in the past few months and which are slowly piling up here (with noone touching them)
<libv>
Inode: still worth documenting though :)
<Inode>
the other A23 fortunately only had a crack that affected one end of the screen
<Inode>
i was able to use adb to get shell access and run android's wm to force overscan so that i could use the remaining 2/3's of the touchscreen that's functional
<Inode>
that device might yield more useful information for your wiki
<libv>
android is also happy with a mouse btw
<libv>
just counterintuitive to use
<Inode>
yes
<Inode>
some builds seem to lack usb mouse support though
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<Inode>
i have another tablet with a wrecked screen that is based on an RK3026 SoC that i cannot find any useful docs for
<Inode>
it refuses to accept any usb mouse i've connected so far *shrug*
<libv>
even if you cannot collect all the information requested/required, someone else might complete it in future
<Inode>
is there anything particular sequence of characters i should try sending to uboot when powering this tablet up? usually ^J is my friend in that regard?
<libv>
i am not sure how far along we are with a23 atm
<libv>
so i am not sure whether telling you to try building an sd card and then trying to collect the basic info that way, is going to be useful
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<Inode>
well i don't mind hacking around if need be
<Inode>
i would ideally prefer to boot a more sane linux distribution than android
<Inode>
preferably from sd :)
<Inode>
but i see mixed information online about whether the A23 actually supports booting from SD?
<libv>
i am actually the wrong guy to ask atm
<libv>
perhaps some of the other usuals have better and up to date info
<libv>
once again, the wiki was not kept too useful
<Inode>
well thanks for the information so far
<libv>
the trouble probably will be that we have no compatibility to the original nand settings as done by allwinner
<Inode>
well fortunately the previous owner seems to have rooted android
<Inode>
which information is required?
<Inode>
a lot of info from the procfs entries i'm guessing?
<libv>
Inode: nope
<libv>
the howto describes the jist of it
<libv>
the dmesg is probably useful for yourself, for helping to figure out the touchscreen and the accelerometer
<libv>
but the .fex file is the most important thing to get
<Inode>
alright
<Inode>
entering FEL mode may be an issue
<libv>
i think that you can dump from /dev/mem
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<Inode>
dd+netcat should suffice for that?
<libv>
no
<libv>
but once again, things were not properly documented
<libv>
how standards slip when i am not personally involved.
<Inode>
heh
<Inode>
ok i managed to enter FEL mode with power+vol-
<Inode>
the vid/pid pair expected is now present, and fel version says: