CDWrite (FUN)

FUNCTION CDWrite : DINT

Write to a character device file. Write() attempts to write up to count bytes from file handle hFile into the buffer starting at buf.

InOut:

Scope

Name

Type

Comment

Return

CDWrite

DINT

Nr of Bytes copied.

Input

hFile

RTS_IEC_HANDLE

File descriptor/handle, that was previously created with open()

pbyBuffer

POINTER TO BYTE

Buffer to copy bytes from.

udCount

UDINT

Nr of bytes to copy.

pResult

POINTER TO DINT

Pointer to linux errno error code, 0 is ok