<div dir="ltr"><div><div>Hi Jose Antonio,<br><br></div><div>maybe the problem is not on ICE, just on the image capture. AFAK cameraserver last release uses opencv to get the images. Have you tried any opencv vanilla application (non JdeRobot) to capture and show images from the webcam on that MK802-IV computer?<br></div><br></div>JoseMaria<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Mar 25, 2015 at 8:23 PM, Jose Antonio Fernandez <span dir="ltr"><<a href="mailto:cbyte18@gmail.com" target="_blank">cbyte18@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi,<br><br>I'm installing Ice in the same device but apply the patch you say Jderobot compile but cameraserver gives this error:<br><br>VIDIOC_DQBUF: Invalid argument<br>libv4l2: error dequeuing buf: Invalid argument<br><br>I suppose that this patch is not enough at least to cameraserver<br><br>But Andres if you takes a different result applying this patch please say to me because I've installed too a cross compiled of Ice to armhf so It's ok or not.<br><br>Thanks<br><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">2015-03-25 13:19 GMT+01:00 Oscar Garcia <span dir="ltr"><<a href="mailto:oscar.robotica@linaresdigital.com" target="_blank">oscar.robotica@linaresdigital.com</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
<div>El 25/03/15 a las 12:48, Andrés J
Hernández Escobar escribió:<br>
</div><span>
<blockquote type="cite">
<div dir="ltr">I'm trying to install Jderobot on a MK802IV which
has an ARM processor. I'm having problems with ICE3.4 (I have
installed Ubuntu 12.04 on it). Has someone installed Jderobot on
it or an ARM?</div>
</blockquote>
<br>
<br></span>
I had jderobot working on a GK802. I had to do some modifications to
ICE headers to achieve that.<span><br>
<br>
<br>
<br>
<blockquote type="cite">
<div dir="ltr">
<div>My current problem is when I'm compiling Jderobot, ICE
posts this error when compiling interfaces:</div>
<div>"</div>
<div><span>/usr/include/IceUtil/Config.h:45:5:
error: #error "Unknown architecture"</span><br>
</div>
<div>"</div>
<div>I check that file and it describes the architecture and the
order of bytes (big or little endian). But it doesn't
describes ARM architecture.</div>
<div>I have also written on ICE forums in case they also help
me.<br>
</div>
</div>
</blockquote>
<br>
<br></span>
I think that I posted a thread in ICE forums and ask for a patch a
couple of years ago. I don't know what happened with that issue but
you can do a workarround editing your Config.h file and define only
ICE_LITTLE_ENDIAN at the start (comment the rest of code trying to
detect the architecture).<br>
<br>
I think that I had a more elegant solution (patch), I'll look for it
for you.<br>
<br>
Regards<br>
</div>
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<br></blockquote></div><span class="HOEnZb"><font color="#888888"><br><br clear="all"><br>-- <br><div><div style="margin-left:40px;text-align:right"><i><b>Jose Antonio Fernandez Casillas</b></i><br></div><br></div>
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<br></blockquote></div><br><br clear="all"><br>-- <br><div class="gmail_signature"><div dir="ltr"><div><div>Universidad Rey Juan Carlos<br></div></div><a href="http://gsyc.urjc.es/jmplaza" target="_blank">http://gsyc.urjc.es/jmplaza</a><br></div></div>
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