CanMsgIoCtl

Owned by Former user (Deleted)
Last updated: Mar 30, 2015 by Former user (Deleted)
1 min read

Description

This function allows to control special features of a CAN message.

Prototype

CPU_INT16S CanMsgIoCtl(CPU_INT16S  msgId,
                       CPU_INT16U  func,
                       void       *argp);

Parameter

Meaning

msgId

Device id, returned by CanMsgOpen()

func

Function Code

argp

Pointer to argument, specific to the function code

Additional Information

Function Code

Meaning

CANMSG_IS_CHANGED

Checks all linked signals of the message for changed status. If a least on signal indicates changed, set the flag to TRUE of the given argument pointer (CPU_BOOLEAN *)

Return Value

One of the following error codes is returned: CAN_ERR_NONE, CAN_ERR_IOCTRLFUNC, CAN_ERR_MSGID, CAN_ERR_SIGID or CAN_ERR_NULLPTR.