OpenCV and De1

Hi, everyone

Currently, I wish to use opencv to handle part of image processing job in my project.

After I installed the library to my de1soc board, i face several challenges to continue.

First of all, I have no clues why the attached usb cam (Logitech C930e) couldn't be initialized.

The command

lsusb 

shows that the camera is detected,

however,

ls /dev/video*

return nothing to me.

Second, i don't know how to include the opencv library into the makefile provided by altera design example.

Could anyone please provide the guideline to do so?

Thank you