User`s manual

t167 Test Program
E-12 Single Board Computers SCSI Software UserÕs Manual
E
NOTE: Command may be issued prior to the first attach.
Table E-2. SDL Supported Sequential Access Commands
cmd hex code arg argp notes
ATTACH 0x06 Driver status routine Pointer to work
area
Uses SCSI-2 mode
pages
RD_SCAT_GAT 0x07 Start block Pointer to S/G
list
S/G list longword
aligned
WR_SCAT_GAT 0x08 Start block Pointer to S/G
list
S/G list longword
aligned
SAFE_READ 0x09 Size of buffer/
Number of blocks
Pointer to buffer Boot device read
INQIRY (NOTE) 0x0A Size in bytes of
inquiry data
Pointer to buffer Device dependent
format
PASS_THRU
(NOTE)
0x0B Address of status
routine
Pointer to buffer arg=0, FILTERED
mode
SCSI_RST
(NOTE)
0x0C Not used Not used Resets all devices on
SCSI Bus
CNTL_RST
(NOTE)
0x0D Not used Not used Resets speciÞed SCSI
controller
RESRVE 0x0E 0 = Release, 1 =
Reserve
Not used State = released after
1st ATTACH
CHG_INTR
(NOTE)
0x0F Interrupt level Not used Change SIOP
interrupt level
GET_INFO 0x10 Size of argp data area Pointer to data
area
Get peripheral
information
SPCE 0x20 Space Control:# of
Units (+,-) to Space
Units = blocks
or Þlemarks
WR_FMKS 0x21 Number of Filemarks
to write
Not used Maximum Þlemarks
= 128
REWND 0x22 Not used Not used Rewinds to BOT
ERASE 0x23 Erase mode control Not used Short and long erase
LOAD_UNLOA
D
0x24 Space mode control Not used Position to BOT, Turn
LED on/off
RD_BLK_LIM 0x25 Return Max Limit Return Min
Limit
Read Block Limits