ARINC 664 parameters such as Virtual Link, Redundancy Management, and Integrity Checking can be read or modified using the mxfAttributeUint64Get(), mxfAttributeDoubleGet(), mxfAttributeUint64Set() and mxfAttributeDoubleSet() functions by passing the handle (device, module, channel or vl) and attribute key-value pair.

See the section Attributes Reference for a description of all supported attributes.

Some other utility functions are used to get information about attributes:

mxfAttributeInfoGet()

Returns the name, type and property of an attribute.
mxfAttributeInfoDetailsGet()

Gets the scope of an attribute: min/max values, resolution.
mxfAttributeListGet()

Returns the attribute list of the specified handle (device, module or channel).
mxfAttributeCountGet()

Returns the number of attributes related to a specific handle (device, module or channel).

The example code below shows how to initialize an ARINC 664 channel and set the external loopback parameter.

HMXF_CHANNEL channel;  // Channel handle
uint32 rc;
   ...
   // Sets speed to 100Mbps
   if(!rc)
      rc = mxfAttributeUint64Set(channel, KMXF_A664_PHY_SPEED, VMXF_A664_PHY_SPEED_100Mbits);
    ...