3.2.6. DVB munmap()¶
dmx-munmap - Unmap device memory
This API is still experimental.
#include <unistd.h> #include <sys/mman.h>
munmap(void *start, size_t length)¶
- Address of the mapped buffer as returned by the
- Length of the mapped buffer. This must be the same value as given to
Unmaps a previously with the
mmap() function mapped
buffer and frees it, if possible.
220.127.116.11. Return Value¶
munmap() returns 0, on failure -1 and the
errno variable is set appropriately:
lengthis incorrect, or no buffers have been mapped yet.