树莓派mjpg解决ERROR opening V4L interface: No such file or directory的问题

一、执行下面命令

system("/usr/local/bin/mjpg_streamer -i \"/usr/local/lib/mjpg-streamer/input_uvc.so -n -f 30 -r 1280x720\" -o \"/usr/local/l
ib/mjpg-streamer/output_http.so -p 8080 -w /usr/local/share/mjpg-streamer/www\" &");

报错：

MJPG Streamer Version: git rev: 310b29f4a94c46652b20c4b7b6e5cf24e532af39
 i: Using V4L2 device.: /dev/video0
 i: Desired Resolution: 1280 x 720
 i: Frames Per Second.: 30
 i: Format............: JPEG
 i: TV-Norm...........: DEFAULT
ERROR opening V4L interface: No such file or directory
 i: init_VideoIn failed

二、解决办法

在执行上述命令前先执行

sudo modprobe bcm2835-v4l2