dmub_rb_cmd_fused_io
struct dmub_rb_cmd_fused_io *io = &command.fused_io;
struct dmub_rb_cmd_fused_io *first = &commands[0].fused_io;
struct dmub_rb_cmd_fused_io *io = &commands[i].fused_io;
struct dmub_rb_cmd_fused_io fused_io;
struct dmub_rb_cmd_fused_io fused_io;