a NULL terminated string, typecast as a void pointer. The content of the string is currently vendor specific. It is acceptable to pass a NULL parameter as def ined in SAE J2534-1. In this case, the vendor determined default device will be selected. 8. Mixed Format Frames on a work 8.1 Scope of the Mixed Format Frames on a work Optional Feature This section details the extensions to SAE J 2534-1 that will allow the simultaneous reception and transmission of ISO 15765 messages and unforma tted CAN frames on an ISO 15765 channel. The ProtocolID (in the PASSTHRU_MSG structure) will be used to identif y the format of the associated message. This section details only the changes from SAE J2534-1. Items not specific ally detailed in this document are assumed not to have changed.
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