C779-Software: Difference between revisions
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pi@raspberrypi:~ $ dmesg | grep cma | pi@raspberrypi:~ $ dmesg | grep cma | ||
[ 0.000000] cma: Reserved 256 MiB at 0x000000001ec00000 | [ 0.000000] cma: Reserved 256 MiB at 0x000000001ec00000 | ||
If it reports less than 96MB assigned to CMA, then ''''' | If it reports less than 96MB assigned to CMA, then please '''''/boot/cmdline.txt''''' as following: | ||
cma=96M | sudo nano /boot/cmdline.txt | ||
to the start of the line | then add <code>cma=96M</code> to the start of the line. | ||
5. Reboot. If all is well you should get a /dev/video0 device, and "v4l2-ctl --list-devices" will tell you that it is provided by Unicam. | 5. Reboot. | ||
sudo reboot | |||
If all is well you should get a /dev/video0 device, and "v4l2-ctl --list-devices" will tell you that it is provided by Unicam. | |||
After connecting all the cables, power on the Raspberry Pi, the C779/C790 indicator light is normally green, and after opening the Raspberry Pi terminal, enter the following command: | After connecting all the cables, power on the Raspberry Pi, the C779/C790 indicator light is normally green, and after opening the Raspberry Pi terminal, enter the following command: | ||
<pre> | <pre> | ||