CDIoctl
(FUN)
FUNCTION CDIoctl : DINT
Control a character device file.
This function manipulates the underlying device parameters of special files.
- InOut:
Scope
Name
Type
Comment
Return
CDIoctl
DINT
0 if ok or errno if failed.
Input
hFile
RTS_IEC_HANDLE
File descriptor/handle, that was previously created with Open()
dRequest
__XWORD
Request id.
dParameter
__XWORD
Request parameter.
pResult
POINTER TO DINT
Pointer to linux errno error code