Hello,<br><br> Fantastic that worked - thank you very much (I needed a make prepare before running make sound and I also needed to dig out a modpost script which I had premade), I used xawtv and luvcview to try out my camera (Philips SPC630NC) - I too had the poor resolution you described. I'm testing it out to see if it is good enough for me but I suspect that it will not be :(.<br>
<br>Cheers,<br><br>Neil<br><br><div class="gmail_quote">2009/1/14 Rask Ingemann Lambertsen <span dir="ltr"><<a href="mailto:rask@sygehus.dk">rask@sygehus.dk</a>></span><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div class="Ih2E3d">On Sun, Jan 11, 2009 at 02:51:07PM +0100, Neil Benn wrote:<br>
> Hello,<br>
><br>
> I am trying to enable support on my OpenMoko for Webcams. I have<br>
> followed the instructions to install debian by using the installation script<br>
> described at : <a href="http://wiki.debian.org/DebianOnFreeRunner" target="_blank">http://wiki.debian.org/DebianOnFreeRunner</a>. I then followed<br>
> the instructions for openmoko and webcam at :<br>
> <a href="http://wiki.openmoko.org/wiki/Webcam" target="_blank">http://wiki.openmoko.org/wiki/Webcam</a>.<br>
<br>
</div> I found that those instructions don't work, presumably because they are<br>
outdated. Here's how I got it to work:<br>
<br>
--- begin HOWTO ---<br>
<br>
This is a description of how to use<br>
a USB webcam on a Neo Freerunner running the Debian distribution as of<br>
2009-01-01. There are three parts to it:<br>
<br>
1) Compiling the necessary kernel modules,<br>
2) Installing utilities for changing USB mode (host/device).<br>
3) Installing a video program.<br>
<br>
Throughout, commands prefixed with # should be run as root while commands<br>
prefixed with $ should be run as a normal user.<br>
<br>
1. Compiling the necessary kernel modules,<br>
<br>
# echo 'deb-src <a href="http://pkg-fso.alioth.debian.org/debian" target="_blank">http://pkg-fso.alioth.debian.org/debian</a> unstable main' >>/etc/apt/sources.list.d/pkg-fso.list<br>
# apt-get update<br>
<br>
# apt-get install dpkg-dev bzip2 gcc make xutils-dev libc6-dev libncurses5-dev<br>
<br>
$ cd ~<br>
$ mkdir download source build<br>
$ cd source<br>
$ dpkg --list | grep -F -e linux-image-<br>
ii linux-image-2.6.24-openmoko-gta02 20081[...]<br>
$ apt-get source linux-image-2.6.24-openmoko-gta02<br>
<br>
You should now have an unpacked linux kernel tree. Make note of the extra version<br>
string in the directory name, which in this particular case it is<br>
'-20081103.git7172ec57'. For example, use your terminal's copy/paste facility to<br>
make a copy of it before the 'make menuconfig' command below.<br>
<br>
$ cd ~/build && mkdir linux-2.6-openmoko-20081103.git7172ec57 && cd linux-2.6-openmoko-20081103.git7172ec57<br>
(making use of TAB-completion to save some typing)<br>
$ lndir -silent ../../source/linux-2.6-openmoko-20081103.git7172ec57<br>
$ cp /boot/config-2.6.24-20081103.git7172ec57 .config<br>
$ make menuconfig<br>
<br>
In 'General setup', 'Local version' enter the version string from above.<br>
Nothing bad will happen to your Neo if you get it wrong, you'll just be sorry<br>
in an hour or so when your modules won't load.<br>
<br>
Most new USB cameras comply with the USB Video Class standard, for which no<br>
driver was included in the 2.6.24 kernel, and the other drivers have since<br>
been updated. We'll download and compile the camera drivers separately.<br>
<br>
Some cameras include a microphone as a standard USB audio device. Enable it here:<br>
<br>
Device Drivers -> Sound -> Advanced Linux Sound Architecture -> USB devices -> USB Audio/MIDI driver (type m)<br>
<br>
Exit the menus all the way back to the shell, saving your new kernel configuration.<br>
<br>
$ make M=sound modules<br>
(10 minutes go by)<br>
<br>
Install the sound modules:<br>
$ su root<br>
# make M=sound modules_install<br>
# exit<br>
<br>
Now we'll build the camera drivers.<br>
<br>
$ cd ~<br>
$ su root<br>
# ln -sf ${PWD}/source/linux-2.6-openmoko-20081103.git7172ec57 /lib/modules/2.6.24-20081103.git7172ec57/source<br>
# ln -sf ${PWD}/build/linux-2.6-openmoko-20081103.git7172ec57 /lib/modules/2.6.24-20081103.git7172ec57/build<br>
# exit<br>
$ cd ~/source<br>
$ wget <a href="http://linuxtv.org/hg/%7Epinchartl/uvcvideo/archive/tip.tar.bz2" target="_blank">http://linuxtv.org/hg/~pinchartl/uvcvideo/archive/tip.tar.bz2</a> -O - | tee ~/download/uvcvideo-tip.tar.bz2 | tar -jxf -<br>
$ sed -i -e 's/-type/-xtype/' uvcvideo-bb383c9099da/v4l/Makefile<br>
$ cd ~/build && mkdir uvcvideo-bb383c9099da && cd uvcvideo-bb383c9099da<br>
$ lndir -silent ../../source/uvcvideo-bb383c9099da<br>
$ make menuconfig<br>
<br>
Disable (type n) all the radio, tuner, DVB and DAB support unless you<br>
have devices which use it. Under 'Video capture adaptors', you can disable the<br>
teletext and debug options. Under 'V4L USB devices' leave all the drivers<br>
enabled unless you already know which one(s) you'll need. Exit, saving your<br>
configuration.<br>
<br>
$ make<br>
(may take as much as 45 minutes)<br>
# su root<br>
# make install<br>
# exit<br>
<br>
2. Installing utilities for changing USB mode (host/device).<br>
<br>
Starting with version 0.7, openmoko-panel-plugin can do this for you.<br>
You can also install the usbmode tool found here (dpkg --force-architecture ...):<br>
<a href="http://www.opkg.org/package_42.html" target="_blank">http://www.opkg.org/package_42.html</a><br>
<br>
Usbmode needs to run as root, however. Either you know how to make a sudo<br>
setup for it, or you'll make it setuid root:<br>
# chmod u+s /usr/bin/usbmode.py<br>
<br>
<br>
3. Installing a video program (UNDER CONSTRUCTION).<br>
<br>
guvcview<br>
cheese<br>
<br>
<br>
And all of this without needing to reboot.<br>
<br>
--- end HOWTO ---<br>
<br>
I tried it with a Logitech Quickcam Pro for Notebooks (2007 version) and<br>
guvcview as packaged by Debian. The USB Video Class driver appear to work fine, but<br>
there are two issues:<br>
<br>
1) Guvcview on Debian/armel has problems. It saves a corrupt config file,<br>
preventing it from starting again unless you delete the config file. It also<br>
saves a corrupt AVI capture file. It works fine on Fedora/x86. I haven't yet<br>
tried other video programs.<br>
<br>
2) The Logitech Quickcam Pro for Notebooks (2007 version) camera isn't very<br>
useful on a USB 1.1 bus. The highest resolutions offered are about 176x144<br>
uncompressed and 800x600 MJPEG compressed. Suggestions are welcome, since I<br>
would like to be able to capture still images of higher resolution,<br>
preferably uncompressed.<br>
<font color="#888888"><br>
--<br>
Rask Ingemann Lambertsen<br>
Danish law requires addresses in e-mail to be logged and stored for a year<br>
</font><div><div></div><div class="Wj3C7c"><br>
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</div></div></blockquote></div><br><br clear="all"><br>-- <br>-- <br><br>Neil Benn Msc<br>CEO<br>Ziath Ltd<br>Website - <a href="http://www.ziath.com">http://www.ziath.com</a><br>Blog - <a href="http://www.labauto-lounge.com">http://www.labauto-lounge.com</a><br>
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