Re: [linux-sunxi] Replacing factory SMD LED's on Cubieboard2 with LED's external to the board...

[Bastiaan van den Berg]

Wouldn't a lightpipe be much more useful? :)
https://en.wikipedia.org/wiki/Light_tube
It would allow you to reuse the cubie without being stuck to the case.

You could use a piece of transparent/translucent filament from a 3D printer
for instance.

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Re: [linux-sunxi] Kernel CEC driver.

[Bastiaan van den Berg]

https://groups.google.com/forum/#!topic/linux-sunxi/l5jhSY8PDFA

This thread does seem to suggest there is (some) CEC hardware...​

Also some code here ;
https://groups.google.com/forum/#!msg/linux-sunxi/cNbMiwzgGJ0/tK-KvXkn-pQJ

Not sure if you missed it or i'm blind, just ignore if nonsense ;)

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Re: [linux-sunxi] Bare metal example for cubietruck

[Bastiaan van den Berg]

Then you cant use the code provided.​

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Re: [linux-sunxi] Root file system for Linux-sunxi 3.4 on Cubietruck

[Bastiaan van den Berg]

Enabling VGA is required before it will work.

Check out https://linux-sunxi.org/Fex_Guide and
https://linux-sunxi.org/Display and https://linux-sunxi.org/Script.bin

And well, all the other pages on the wiki ;)

As for root filesystem, you can use any with a proper ACL , so -not- Fat32
or NTFS , but most others are ok. Depends on which medium you are setting
it up really


On Wed, Oct 12, 2016 at 1:50 PM, dlbp  wrote:

> Hello to everybody
>
> First of all, i'm using a micro SD and a Cubietruck.
>
> I have installed U-boot-2015.04 and linux-sunxi (from https://github.com/
> linux-sunxi/linux-sunxi )
>
> I have followed the guide available online and it boots.
>
> But when starting kernel, if i connect Cubietruck via VGA, i can't see
> anything. Otherwise, if i connect via UART, it works!!!
>
> What can be the solution??
>
> Another request: i need a target root file system as indicated in
> http://linux-sunxi.org/Linux_Kernel#Install
> What root filesystem can i use??
>
> Thanks to all
>
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Re: [linux-sunxi] Recommendations for hardware designer for custom Allwinner based Single Board Computer (SBC)?

[Bastiaan van den Berg]

NTC (nextthing company) is also making their own custom allwinner board
https://nextthing.co/

On Fri, Oct 7, 2016 at 12:41 PM, Senthil Seveelavananan <
s.seveelava...@gmail.com> wrote:

> Hi all,
>
> Given this is where people that actually know whats going on hang out, was
> hoping people could recommend me companies / people to design a custom
> Allwinner based board.
>
> I know about
> - Olimex
> - Banana Pi
> - Orange Pi
> - Friendly Pi,
>
> all recommendations appreciated.
>
> Many thanks
>
> Senthil
>
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Re: [linux-sunxi] uvcvideo: Failed to submit URB 0 (-28) with Cam Sync HD VF0770 (041e:4095)

[Bastiaan van den Berg]

Here is the second google hit on 'VIDIOC_STREAMON error 28, No space left
on device'

http://superuser.com/questions/431759/using-multiple-usb-webcams-in-linux

On Sat, Aug 6, 2016 at 5:14 PM, Piotr Król <piotr.k...@3mdeb.com> wrote:

> On Sat, Aug 06, 2016 at 04:05:04PM +0200, Bastiaan van den Berg wrote:
>
> Hi Bastiaan,
>
> > First google hit on actual error suggests the 'out of space' is a way to
> denote
> > bandwidth limitation
> > it also has a workaround
> >
> > http://answers.ros.org/question/12582/usb_cam-vidioc_streamon-error-28/
>
> Apparently my goole results are not tweaked well for UVC issues. Thanks
> for this link.
>
> Unfortunately this doesn't help. Full test log can be found here [1].
>
> I assume this log mean quirk was applied correctly:
> # modprobe uvcvideo quirks=128
> [   63.137035] uvcvideo: Found UVC 1.00 device Live! Cam Sync HD VF0770
> (041e:4095)
> [   63.144561] uvcvideo: Forcing device quirks to 0x80 by module parameter
> for testing purpose.
> [   63.152987] uvcvideo: Please report required quirks to the
> linux-uvc-devel mailing list.
> [   63.172943] input: Live! Cam Sync HD VF0770 as
> /devices/platform/soc@01c0/1c13000.usb/musb-hdrc.1.auto/
> usb5/5-1/5-1.2/5-1.2:1.0/input/input1
> [   63.186367] usbcore: registered new interface driver uvcvideo
> [   63.192113] USB Video Class driver (1.1.1)
>
> # v4l2grab -d /dev/video0 -o image.jpg
> [   78.631747] uvcvideo: Failed to submit URB 0 (-28).
> libv4l2: error turning on stream: No space left on device
> VIDIOC_STREAMON error 28, No space left on device
>
> Maybe I should cc linux-uvc-devel as mention in log ?
>
> [1] http://paste.ubuntu.com/22455180/
>
> --
> Best Regards,
> Piotr Król
> Embedded Systems Consultant
> http://3mdeb.com | @3mdeb_com
>

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Re: [linux-sunxi] uvcvideo: Failed to submit URB 0 (-28) with Cam Sync HD VF0770 (041e:4095)

[Bastiaan van den Berg]

First google hit on actual error suggests the 'out of space' is a way to
denote bandwidth limitation
it also has a workaround

http://answers.ros.org/question/12582/usb_cam-vidioc_streamon-error-28/

On Sat, Aug 6, 2016 at 4:00 PM, Piotr Król  wrote:

> Hi all,
> We have custom Allwinner A20 based hardware on which we try to utilize
> USB DRD (configured in device tree as host [1]) to connect Creative web
> camera [2].
>
> We use 4.7 kernel release built using buildroot. Hardware configuration can
> be described like that:
>
> A20 mainboard -> LAN9514i -> Creative web camera
>
> I tried v4l2grab and fswebcam, but both application result in
> "uvcvideo: Failed to submit URB 0 (-28)" and further complaining that
> there is no space left on device, despite there is planty of free
> space [3]. We also tried to capture in /tmp with the same result.
>
> v4l2grab output:
> # v4l2grab -d /dev/video0 -o image.jpg
> [ 1802.800160 ] uvcvideo: Failed to submit URB 0 (-28).
> libv4l2: error turning on stream: No space left on device
> VIDIOC_STREAMON error 28, No space left on device
>
> fswebcam output:
> # fswebcam -r 1280x720 --jpeg 95 -D 1 image.jpg
> --- Opening /dev/video0...
> Trying source module v4l2...
> /dev/video0 opened.
> No input was specified, using the first.
> Delaying 1 seconds.
> [  432.952080 ] uvcvideo: Failed to submit URB 0 (-28).
> Error starting stream.
> VIDIOC_STREAMON: No space left on device
> Unable to use mmap. Using read instead.
> Unable to use read.
>
> What we also tried is checking camera with Raspberry Pi Compute Module
> in that way:
>
> RPICM -> LAN9514i -> LAN9514i -> Creative web camera
>
> And this works without problem.
>
> We proved that USB was correctly configured in host mode by trying
> usb-storage, usbhid and ftdi driver, what can be found in dmesg [4].
>
> I have hard time with finding from what code -28 came from, since calls
> are nested in usb subsystem. What this error means ? How it can be
> avoided ?
>
> Any other ideas how to debug this issue further are welcome.
>
> [1] http://paste.ubuntu.com/22446905/
> [2] http://www.scanmalta.com/scanshop/creative-live-cam-
> sync-1-3mp-hd-webcam.html
> [3] http://paste.ubuntu.com/22448114/
> [4] http://paste.ubuntu.com/22446585/
>
> --
> Best Regards,
> Piotr Król
> Embedded Systems Consultant
> http://3mdeb.com | @3mdeb_com
>
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Re: [linux-sunxi] CedarX Encoder Demo

[Bastiaan van den Berg]

On Sat, May 21, 2016 at 5:27 PM, Rosimildo DaSilva 
wrote:

> I have added "V4l2" sources to the CedarX encoder demo.
>
> This is basically the "Camera" sources from AW demo that was around for
> A20...
>
>
Thanks, good job

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Re: [linux-sunxi] Re: Allwinner strips symbols from latest cedar binaries.

[Bastiaan van den Berg]

hilarious comment on a ML dedicated to linux kernel development for only
their product :D

On Thu, Mar 26, 2015 at 9:27 AM, michel.memet...@gmail.com wrote:

 This IS why nobody should buy their produits nor helping develop for them

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Re: [linux-sunxi] Networking issues (ssh timeouts) on cubietruck

[Bastiaan van den Berg]

run the build jobs inside screen?​

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Re: [linux-sunxi] How to test interface pins of BananaPi and pcArduino nano

[Bastiaan van den Berg]

On Thu, Feb 26, 2015 at 2:36 PM, Irgendeiner irgendei...@gmx.ch wrote:

 Now I need some inspiration how the other parts of the hardware could be
 tested without buying too much infrastructure?


Connect LEDs to gpios and blink them?

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Re: [linux-sunxi] Re: Max HDD capacity on A10/A20

[Bastiaan van den Berg]

On Mon, Feb 16, 2015 at 1:15 PM, Michal Suchanek hramr...@gmail.com wrote:


 Barring some defect in the SATA controller any SATA capacity should be
 supported.


sweet, ty

On Mon, Feb 16, 2015 at 2:13 PM, pere canadell calh...@gmail.com wrote:

 Hi, sorry I can only say that with a Cubieboard A10, I've working now with
 a 2TB western digital green, and for my personal backup with samba is
 working stable from months.


So, no clue?

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Re: [linux-sunxi] Interview questions to Allwinner

[Bastiaan van den Berg]

I just want to know if A80 will get SATA in a future version!
​Non-SATA machines are so counter productive for me :(

Maybe some A82 version with extra SATA added?

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Re: [linux-sunxi] Slow startup of Qt app

[Bastiaan van den Berg]

Just a guess, did you check if your hostname can be resolved?

Add the hostname to /etc/hosts with ip 127.0.0.1 ..​

This often creates similar delays on many applications, like you described.

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Re: [linux-sunxi] Slow startup of Qt app

[Bastiaan van den Berg]

No, i mean the hostname of your installation.
Check whats in /etc/hostname

Put -that- in /etc/hosts with 127.0.0.1 as ip
​
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Re: [linux-sunxi] USB port not working on A20 based device with sunxi-3.4

[Bastiaan van den Berg]

try
$ ls arch/arm/configs/

that should show you defconfigs that you -do- have ;)
​
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Re: [linux-sunxi] GPU accelaration

[Bastiaan van den Berg]

On Mon, May 19, 2014 at 2:49 PM, Shant Kehyeian skehye...@gmail.com wrote:

 Please I need help what should I do ?


there is no error ...

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Re: [linux-sunxi] GPU accelaration

[Bastiaan van den Berg]

or perhaps you refer to this?

[52.301] (EE) AIGLX error: dlopen of /usr/lib/dri/lima_dri.so failed
(/usr/lib/dri/lima_dri.so: cannot open shared object file: No such file or
directory)
​
do you have that file?

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