* sudo aptitude install -y v4l-utils # for v4l2-ctl
* sudo aptitude install pkg-config # for compiling
* for opencv:
- * sudo aptitude install -y
+ * sudo aptitude install -y libopencv-dev
+ * check whether libopencv-dev is the only package necessary
* add ssh key to bbb image to make sshing easier
+** trying to compile grabber.c from derek molloy
+*** problem
+**** what i did
+gcc -O2 -Wall `pkg-config --cflags --libs libv4l2` grabber.c -o grabber
+
+**** what i expected
+compilation finishes and i can run grabber
+
+**** what actually happened
+Package libv4l2 was not found in the pkg-config search path.
+
+**** potential solution
+ sudo aptitude install -y libv4l-dev
+
+***** did it work?
+ * retrying compile
+ * compile finished, created grabber!
+
+** another problem, getting image from camera failed
+*** problem
+**** what i did
+after compiling grabber, tried to run it
+
+**** what i expected
+grab images and maybe there would be a picture in the current directory
+
+**** what actually happened
+grabber ran for a bit and output the following:
+
+"Warning: driver is sending image at 1280x720"
+
+after waiting for a bit, killed grabber with C-c. no picture in the
+current directory
+
+**** possible solution
+ * read source of grabber.c and look for anything out of
+ ordinary.
+ * saw that frame size was hard coded to 1920x1080
+ * redid code to 640x480. recompiled the code
+ * ran it, got no terminal output
+ * killed it with C-c after a bit
+ * saw grabber000.ppm
+
* doing
* maybe just go with debian 8.2
* systematically try all the images on all the boards