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The tables on the following pages show the bit assignments
for bits 16 through 31 for the principal HP device drivers. In all
cases, bits 8 through 15 (that is NN in hexadecimal 0xNN0000) encode the card instance of the interface card
through which the device communicates. Table C-4 Bit Assignments for Tape Devices | bits
16-19 | 20-23 | 24-27 | 28-31 |
|---|
stape tape2 | SCSI target | SCSI LUN | 24
- BSD behavior at close 25 - No rewind 26
- Configuration method [1] 27-31
- Index/Density [2] |
Table C-5 Bit Assignments for Disk and Magneto-Optical
Devices | bits
16-19 | 20-23 | 24-27 | 28-31 |
|---|
disc3 | SCSI target | SCSI LUN | Reserved | Section number | disc4 | SCSI target | SCSI LUN (always
0) | Reserved | Section number | sdisk | SCSI target | SCSI LUN | Reserved | Disk partition number | sflop | SCSI target | SCSI LUN | Reserved | 0=3.5in 1.44MB drive,
geom determined (default) 1=3.5in 1.44MB drive, no geom determined (SoftPC) 2=3.5in 720KB
drive, geom determined 3=3.5in 720KB drive, no geom determined 4=3.5in 2.88MB drive,
geom determined 5=3.5in 2.88MB drive, no geom determined | | | | | | 6=not supported 7=not supported 8=5.25in 1.2MB
drive, geom determined 8=5.25in 360KB drive, geom determined 9=5.25in 1.2MB
drive, no geom determined 9=5.25in 360KB drive, no geom determined | schgr autox0 | SCSI target | 20-22
- SCSI LUN 23-31 - Surface |
Table C-6 Bit Assignments for Serial, Network, and Line
Printer Devices | bits
16-19 | 20-23 | 24-27 | 28-31 |
|---|
asio0 | 16-17 - Receive
fifo trigger level 18-19 - Transmit fifo limit | Reserved | 24 - Card diagnostic
bit 25 - Reserved 26 - Reserved 27 - Hardware flow
control enable | 28 - Reserved 29
- Protocol 0=Bell, 1=CCITT 30-31 - Access mode 00=Direct 01=Dial-out modem
10=Dial-in modem | mux0 mux2 mux4 | 16-23
- Port number | 24 - Card diagnostic
bit 25 - Port diagnostic bit 26 - Reserved 27 - Hardware flow
control enable | 28 - Reserved 29
- Protocol 0=Bell, 1=CCITT 30-31 - Access mode 00=Direct 01=Dial-out modem
10=Dial-in modem | lan0 lan1 lan2 lan3 | 16-23
- Reserved | 24
- Diagnostic access 25-30 - Reserved 31
- Protocol 1=IEEE, 2=Ethernet | osi0 | 16-31
- Reserved | CentIf | 16-27
- Reserved | Handshake
mode: 1=Automatic, using ACK, BUSY 2=Automatic, using BUSY only 3=Bidirectional read/write
(for ScanJet) 4=Stream mode 5=Pulsed mode, using ACK, BUSY 6=Pulsed mode,
using BUSY only | lpr0 lpr1 lpr2 lpr3 | SCSI target | SCSI LUN | 24 - Diagnostic access 25
- Reserved 26 - Auto form feed 27 - Case
fold | 28 - Raw
mode 29 - No wait 30 - Old paper-out behavior 31
- Eject page during paper-out recovery |
Table C-7 Bit Assignments for Miscellaneous Devices | bits
16-19 | 20-23 | 24-27 | 28-31 |
|---|
sctl | SCSI target | SCSI LUN | Reserved | 0=Select
with ATN enabled (default) 1=Select with ATN controlled by scsi_cmd_parms [1] 2=Inhibit inquiry at open >2
- Not supported | instr0 | 16-20
- Instrument address 21-23 - Reserved | 24
- Diagnostic access 25-31 - Reserved | pty0 pty1 | Bits
8-31 - Unique hex value for pty | pdn0 | Bits
16-23=2 (type) | 24
- Diagnostic bit 25-31 - unused | psi0 psi1 | 16-23
- Reserved | 24
- diagnostic 25-31(psi0) - Reserved 25-31(psi1) - PDA Index | graph3 | 16-23
- Bus specifier | Unused | 0=Image
planes 1=Overlay planes | ps2 | b (hexadecimal) [2] | Reserved | Port number | 28 - Autosearch 0=Off,
1=On. If 28 is On, 29 used as follows: 0=Mouse 1=Keyboard 30-31=0 | audio | Instance Number | 0=Read/write
device 1=control only device | Output destination (Ignored
if bits 28-31=0.) 0=Headphone, internal speaker, line out
for Audio II 1=Headphone only 2=Int. speaker only 3=No output 4=Line
output only (Audio II) | Output
format (Ignored if bits 20-23=1) 0=No change 1=Mu-law 2=A-law 3=16-bit
linear |
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