Parameters

   o  robot_info - This is the address of a robot_info_t structure
      initialized using mrd_startup(3mrd) or mrd_show(3mrd). This
      data structure contains the element starting address and
      counts for each type of element, which are needed to map an
      absolute element to the correct zero relative address and
      type.

   o  type - This is the element type code about which information
      is desired. The mrd_common.h include file defines the
      constants SLOT, PORT, DRIVE and TRANSPORT which may be used.

   o  start - The absolute element address of the first element for
      which information is desired.

   o  count - The number of elements for which the information is
      desired.

   o  data - This is the address of an array of unsigned characters
      where the element status data will be written. Interpretation
      of the data is left to the caller.

   o  length - This is the amount of element_status data, in
      bytes, available for the Read Element Status request. If the
      requested number of elements requires more space only data for
      as many elements as will fit will be copied.

   o  dev_status - The dev_status is the address of a dev_status_
      t structure, which is used to pass back detailed error
      information in the event of a command failure.