CDMunmap (FUN)¶

FUNCTION CDMunmap : DINT

Unmap files or devices into memory. The munmap() system call deletes the mappings for the specified address range.

InOut:

Scope	Name	Type	Comment
Return	CDMunmap	DINT	0 on success, -1 if failed.
Input	addr	POINTER TO BYTE	Pointer to starting address
	length	UDINT	Number of bytes mapped
	pResult	POINTER TO DINT	Pointer to linux errno error code, 0 is ok