7.65. V4L2 munmap()¶
v4l2-munmap - Unmap device memory
Address of the mapped buffer as returned by the mmap() function.
Length of the mapped buffer. This must be the same value as given to mmap() and returned by the driver in the struct
lengthfield for the single-planar API and in the struct
lengthfield for the multi-planar API.
Unmaps a previously with the mmap() function mapped buffer and frees it, if possible.