libcamera#
New open source camera driver that is used for RPI 11+ (Bullseye or later). Libcamera is a Linux focused driver that allows the usage of more complex cameras (not only RPi Camera) and runs on the (ARM) processors.
https://www.raspberrypi.com/documentation/accessories/camera.html
The Libcamera will provided /dev/video0 and /dev/video1 as Device Nodes for the RPi Camera. These are Camera Serial Interface 2 (CSI2) "Unicam" that are provide and managed in combination with the V4L2 driver.
Usage#
Pictures
libcamera-still
Videos
libcamera-vid
https://www.raspberrypi.com/documentation/accessories/camera.html
Problems#
The API changed a bit, so that currently the rpi camera cannot be used on the new RPI OS Version Bullseye. Also old Applications got problems and cant run on the rpi.
https://raspberrypi.stackexchange.com/questions/135364/libcamera-stack-does-not-work-with-bullseye
https://forums.raspberrypi.com/viewtopic.php?p=1958297
Back to Legacy Camera Stack#
The Old Driver can be reactivated in the RaspberryPi Config:
-
sudo raspi-config -
Interface Options and select Legacy camera
-
reboot
https://www.raspberrypi.com/documentation/accessories/camera.html#re-enabling-the-legacy-stack
or by changing in the /boot/config.txt a view Parameters. Remove camera_auto_detect and add the two lines. Than Reboot.
File
/boot/config.txt
...
# Automatically load overlays for detected cameras
#camera_auto_detect=1
start_x=1
gpu_mem=128
...