Re #6790 backspace should perform delete on console
VAAI (XXX ATS support for COMSTAR, YYY Block-copy support for COMSTAR)

@@ -327,10 +327,11 @@
 /*
  * Group 4 Commands, All Devices
  */
 #define SCMD_GROUP4             0x80
 #define SCMD_EXTENDED_COPY      0x83
+#define SCMD_RECV_COPY_RESULTS  0x84
 #define SCMD_VERIFY_G4          0x8f
 
 /*
  * Group 4 Commands, Direct Access Devices
  */

@@ -355,10 +356,11 @@
 /*
  * Group 4 Commands, Sequential Access Devics
  */
 #define SCMD_WRITE_FILE_MARK_G4 0x80
 #define SCMD_READ_REVERSE_G4    0x81
+#define SCMD_COMPARE_AND_WRITE  0x89
 #define SCMD_READ_ATTRIBUTE     0x8c
 #define SCMD_WRITE_ATTRIBUTE    0x8d
 #define SCMD_SPACE_G4           0x91
 #define SCMD_LOCATE_G4          0x92