This appendix summarizes the Silicon Graphics Driver/Kernel Authorized Programming Interface in tabular form. The data structures, entry points, and kernel functions are listed alphabetically with with clickable links to discussions in this book and to their reference pages. The tables also show which functions and structures are compatible with SVR4 and which are unique to IRIX.
The tables in this appendix are based on the reference pages in volume D. The reference pages in volume D constitute the formal, engineering definition of the Driver/Kernel API. When discussion in this book disagrees with the contents of a reference page, the reference page takes precedence (however, any such disagreement should be reported by using the Feedback menu of the Insight viewer).
“Driver Exported Names” tabulates the names of data and functions that a driver must export.
“Kernel Data Structures and Declarations” tabulates the objects used in the interface.
“Kernel Functions” tabulates the IRIX kernel services used by drivers.
Each table in this appendix has a column headed “Versions.” The codes in this column have the following meanings:
SV | Syntactically and semantically portable from SVR4 UNIX, as documented in the UNIX SVR4.2 Device Driver Reference. |
SV* | Syntactically portable from UNIX SVR4, but semantics may differ. Read the discussion and reference page carefully when porting. |
5.3 | Portable from IRIX version 5.3. |
5.3* | Portable from IRIX 5.3, but interface has changed in some detail or new ability has been added. |
6.2 | Introduced in IRIX version 6.2. |
A kernel driver is required to export certain names of static data and functional entry points. These exported names are summarized in Table A-1.
Table A-1. Driver Exported Names
Name | Summary | Discussed | Versions |
|---|---|---|---|
close(D2) | Notify driver of final close of minor device. | SV, 5.3 | |
devflag(D1) | Show driver attributes to lboot. | SV*, 5.3* | |
halt(D2) | Notify driver of system shutdown. | SV, 5.3 | |
info(D1) | Show driver entries to STREAMS interface. | SV, 5.3 | |
init(D2) | Initialize driver early in system startup. | SV*, 5.3 | |
intr(D2) | Notify driver of device interrupt. | SV, 5.3 | |
ioctl(D2) | Call driver to implement ioctl() call. | SV*, 5.3 | |
map(D2) | Call driver to implement IRIX mmap(). | 5.3 | |
mmap(D2) | Call driver to implement mmap(). | SV*, 5.3 | |
open(D2) | Call driver to open a device. | SV, 5.3 | |
print(D2) | Call block driver to display filesystem error. | SV, 5.3 | |
put(D2) | Call STREAMS driver to receive message. | SV, 5.3 | |
read(D2) | Call character driver to read data. | SV, 5.3 | |
size(D2) | Call block driver to get device capacity. | SV, 5.3 | |
srv(D2) | Call driver to service queued messages. | SV, 5.3 | |
start(D2) | Initialize driver late in system startup. | SV, 5.3 | |
strategy(D2) | Call block driver to read or write data. | SV*, 5.3 | |
unload(D2) | Call loadable driver prior to unloading it. | 5.3 | |
unmap(D2) | Call driver to notify it of unmap() call. | 5.3 | |
write(D2) | Call character driver to write data. | SV, 5.3 |
The following reference pages have overview information on exported names: intro(D1), intro(D2), and prefix(D1).
 | Note: The following SVR4 exported names are not used in IRIX drivers: chpoll, _load, and _unload. The latter is replaced by pfxload() without the leading underscore. |
The driver/kernel interface is based on shared use of certain data types and defined constant values. For general information on these interface objects, see the intro(D4) and intro(D5) reference pages.
The interface objects used by device drivers are summarized in Table A-2. .
Table A-2. Device Driver Interface Objects
Name | Summary | Discussed | Versions |
|---|---|---|---|
buf(D4) | Block read/write request structure. | SV*, 5.3* | |
eisa_dma_cb(D4) | DMA command block for EISA slave DMA. | 5.3 | |
eisa_dma_buf(D4) | DMA command buffer for EISA slave DMA. | 5.3 | |
errnos(D5) | Error numbers valid for driver use. |
| SV*, 5.3 |
iovec(D4) | Describes an I/O buffer segment to the read or write entry points. | SV, 5.3 | |
signals(D5) | Lists signal numbers valid for driver use. |
| SV*, 5.3 |
uio(D4) | Describes an I/O request to the read or write entry points. | SV*, 5.3 |
| Note: The following data structures used in SVR4 drivers are not used in IRIX: dma_buf and dma_cb. The eisa_dma_buf and eisa_dma_cb structures are similar but are used only in EISA drivers. |
The interface objects used by STREAMS drivers are summarized in Table A-3
Table A-3. STREAMS Driver Interface Objects
Name | Summary | Discussed | Versions |
|---|---|---|---|
copyreq(D4) | Copy request structure. |
| SV, 5.3 |
copyresp(D4) | Copy response structure. |
| SV, 5.3 |
datab(D4) | Message data block. |
| SV, 5.3 |
free_rtn(D4) | Describes a message-free routine. |
| SV, 5.3 |
iocblk(D4) | Describes ioctl() data or response. |
| SV, 5.3 |
linkblk(D4) | Describes multiplexed link. |
| SV, 5.3 |
module_info(D4) | Describes module attributes. |
| SV, 5.3 |
msgb(D4) | Describes all or part of a message. |
| SV, 5.3 |
qinit(D4) | Points to handlers and parameters for a queue. |
| SV, 5.3 |
queue(D4) | Describes a queue of messages. |
| SV, 5.3 |
streamtab(D4) | Points to the queues handled by a driver. |
| SV, 5.3 |
stroptions(D4) | Lists stream-head options. |
| SV, 5.3 |
The IRIX kernel makes available the Table A-4 functions summarized in .
Name | Summary | Discussed | Versions |
|---|---|---|---|
adjmsg(D3) | Trim bytes from a message. |
| SV, 5.3 |
allocb(D3) | Allocate a message block. |
| SV, 5.3 |
ASSERT(D3) | Debugging macro designed for use in the kernel (compare to assert(3X)). | 5.3 | |
badaddr(D3) | Test physical address for input. | 5.3 | |
badaddr_val(D3) | Test physical address for input and return the input value received. | 6.2 | |
bcanput(D3) | Test for flow control in a specified priority band. |
| SV, 5.3 |
bcanputnext(D3) | Test for flow control in a specified priority band. |
| SV, 5.3 |
bcmp(D3) | Compare data between kernel locations. | SV, 5.3 | |
bcopy(D3) | Copy data between locations in the kernel. | SV, 5.3 | |
biodone(D3) | Mark a buf_t as complete and wake any process waiting for it. | SV, 5.3 | |
bioerror(D3) | Manipulate error fields within a buf_t. | SV, 5.3 | |
biowait(D3) | Suspend process pending completion of block I/O. | SV, 5.3 | |
bp_mapin(D3) | Map buffer pages into kernel virtual address space. | SV, 5.3 | |
bp_mapout(D3) | Release mapping of buffer pages. | SV, 5.3 | |
bptophys(D3) | Get physical address of buffer data. | 5.3 | |
brelse(D3) | Return a buffer to the system's free list. | SV, 5.3 | |
btod(D3) | Return number of 512-byte “sectors” in a byte count (round up). | 5.3 | |
btop(D3) | Return number of I/O pages in a byte count (truncate). | SV, 5.3 | |
btopr(D3) | Return number of I/O pages in a byte count (round up). | SV, 5.3 | |
bufcall(D3) | Call a function when a buffer becomes available. |
| SV, 5.3 |
bzero(D3) | Clear kernel memory for a specified size. | SV, 5.3 | |
canput(D3) | Test for room in a message queue. |
| SV, 5.3 |
canputnext(D3) | Test for room in a message queue. |
| SV, 5.3 |
clrbuf(D3) | Erase the contents of a buffer desribed by a buf_t. | SV, 5.3 | |
cmn_err(D3) | Display an error message or panic the system. | SV*, 5.3 | |
copyb(D3) | Copy a message block. |
| SV, 5.3 |
copyin(D3) | Copy data from user address space. | SV, 5.3 | |
copymsg(D3) | Copy a message. |
| SV, 5.3 |
copyout(D3) | Copy data to user address space. | SV, 5.3 | |
cpsema(D3) | Conditionally decrement a semaphore's state. | 5.3 | |
cvsema(D3) | Conditionally increment a semaphore's state | 5.3 | |
datamsg(D3) | Test whether a message is a data message. |
| SV, 5.3 |
delay(D3) | Delay for a specified number of clock ticks. | SV, 5.3 | |
disable_sysad_parity() | Disable memory parity checking on SysAD bus. |
| |
dki_dcache_inval(D3) | Invalidate the data cache for a given range of virtual addresses. | 5.3 | |
dki_dcache_wb(D3) | Write back the data cache for a given range of virtual addresses. | 5.3 | |
dki_dcache_wbinval(D3) | Write back and invalidate the data cache for a given range of virtual addresses. | 5.3 | |
dma_map(D3) | Load DMA mapping registers for an imminent transfer. | 5.3 | |
dma_mapbp(D3) | Load DMA mapping registers for an imminent transfer. | 5.3 | |
dma_mapaddr(D3) | Return the “bus virtual” address for a given map and address. | 5.3 | |
dma_mapalloc(D3) | Allocate a DMA map. | 5.3 | |
dma_mapfree(D3) | Free a DMA map. | 5.3 | |
drv_getparm(D3) | Retrieve kernel state information. | SV*, 5.3 | |
drv_hztousec(D3) | Convert clock ticks to microseconds | SV, 5.3 | |
drv_priv(D3) | Test for privileged user. | SV, 5.3 | |
drv_setparm(D3) | Set kernel state information. | SV, 5.3 | |
drv_usectohz(D3) | Convert microseconds to clock ticks. | SV, 5.3 | |
drv_usecwait(D3) | Busy-wait for a specified interval. | SV, 5.3 | |
dtimeout(D3) | Schedule a function execute on a specified processor after a specified length of time. | 5.3 | |
dupb(D3) | Duplicate a message block. |
| SV, 5.3 |
dupmsg(D3) | Duplicate a message. |
| SV, 5.3 |
eisa_dma_disable(D3) | Disable recognition of hardware requests on a DMA channel. | 5.3 | |
eisa_dma_enable(D3) | Enable recognition of hardware requests on a DMA channel. | 5.3 | |
eisa_dma_free_buf(D3) | Free a previously allocated DMA buffer descriptor. | 5.3 | |
eisa_dma_free_cb(D3) | Free a previously allocated DMA command block. | 5.3 | |
eisa_dma_get_buf(D3) | Allocate a DMA buffer descriptor. | 5.3 | |
eisa_dma_get_cb(D3) | Allocate a DMA command block. | 5.3 | |
eisa_dma_prog(D3) | Program a DMA operation for a subsequent software request. | 5.3 | |
eisa_dma_stop(D3) | Stop software-initiated DMA operation and release channel. | 5.3 | |
eisa_dma_swstart(D3) | Initiate a DMA operation via software request. | 5.3 | |
eisa_dmachan_alloc() | Allocate a DMA channel for EISA slave DMA. | 5.3 | |
eisa_ivec_alloc() | Allocate an IRQ level for EISA. | 5.3 | |
eisa_ivec_set() | Associate a handler with an EISA IRQ. | 5.3 | |
enableok(D3) | Allow a queue to be serviced. |
| SV, 5.3 |
enable_sysad_parity() | Reenable parity checking on SysAD bus. |
| |
esballoc(D3) | Allocate a message block using an externally-supplied buffer. |
| SV, 5.3 |
esbbcall(D3) | Call a function when an externally-supplied buffer can be allocated. |
| SV, 5.3 |
etoimajor(D3) | Convert external to internal major device number. | SV, 5.3 | |
fast_itimeout(D3) | Same as itimeout() but takes an interval in “fast ticks.” | 6.2 | |
fasthzto(D3) | Returns the value of a struct timeval as a count of “fast ticks.” | 6.2 | |
flushband(D3) | Flush messages in a specified priority band. |
| SV, 5.3 |
flushbus(D3) | Make sure contents of the write buffer are flushed to the system bus | 5.3 | |
flushq(D3) | Flush messages on a queue. |
| SV, 5.3 |
freeb(D3) | Free a message block. |
| SV, 5.3 |
freemsg(D3) | Free a message. |
| SV, 5.3 |
freerbuf(D3) | Free a buf_t with no buffer. | SV, 5.3 | |
freesema(D3) | Free the resources associated with a semaphore. | 5.3* | |
freezestr(D3) | Freeze the state of a stream. |
| SV, 5.3 |
fubyte(D3) | Load a byte from user space. | 5.3 | |
fuword(D3) | Load a word from user space. | 5.3 | |
geteblk(D3) | Get a buf_t with no buffer. | SV, 5.3 | |
getemajor(D3) | Get external major device number. | SV, 5.3 | |
geteminor(D3) | Get external minor device number. | SV, 5.3 | |
geterror(D3) | retrieve error number from a buffer header | SV, 5.3 | |
getmajor(D3) | Get internal major device number. | SV, 5.3 | |
getminor(D3) | Get internal minor device number. | SV, 5.3 | |
getnextpg(D3) | Return pfdat structure for next page. | 5.3 | |
getq(D3) | Get the next message from a queue. |
| SV, 5.3 |
getrbuf(D3) | Allocate a buf_t with no buffer. | SV, 5.3 | |
hwcpin(D3) | Copy data from device registers to kernel memory. | 5.3 | |
hwcpout(D3) | Copy data from kernel memory to device registers. | 5.3 | |
initnsema(D3) | Initialize a semaphore to a specified count. | 5.3 | |
initnsema_mutex(D3) | Initialize a semaphore to a count of 1. | 5.3 | |
insq(D3) | Insert a message into a queue. |
| SV, 5.3 |
ip26_enable_ucmem(D3) | Change memory mode on IP26 processor. | 6.2 | |
ip26_return_ucmem(D3) | Change memory mode on IP26 processor. | SV, 5.3 | |
is_sysad_parity_enabled( ) | Test for parity checking on SysAD bus. | 5.3 | |
itimeout(D3) | Schedule a function to be executed after a specified number of clock ticks. | SV, 5.3 | |
itoemajor(D3) | Convert internal to external major device number. | SV, 5.3 | |
kern_calloc(D3) | Allocate and clear space from kernel memory. | 5.3 | |
kern_free(D3) | Free kernel memory space. | 5.3 | |
kern_malloc(D3) | Allocate kernel virtual memory. | 5.3 | |
kmem_alloc(D3) | Allocate space from kernel free memory. | SV, 5.3 | |
kmem_free(D3) | Free previously allocated kernel memory. | SV, 5.3 | |
kmem_zalloc(D3) | Allocate and clear space from kernel free memory. | SV, 5.3 | |
kvtophys(D3) | Get physical address of kernel data. | 5.3 | |
linkb(D3) | Concatenate two message blocks. |
| SV*, 5.3* |
LOCK(D3) | Acquire a basic lock, waiting if necessary. | SV*, 5.3* | |
LOCK_ALLOC(D3) | Allocate and initialize a basic lock. | SV*, 5.3* | |
LOCK_DEALLOC(D3) | Deallocate an instance of a basic lock. | SV*, 5.3* | |
LOCK_INIT(D3) | Initialize a basic lock that was allocated statically, or reinitialize an allocated lock. | 6.2 | |
LOCK_DESTROY(D3) | Uninitialize a basic lock that was allocated statically. | 6.2 | |
makedevice(D3) | Make device number from major and minor numbers. | SV, 5.3 | |
max(D3) | Return the larger of two integers. |
| SV, 5.3 |
min(D3) | Return the lesser of two integers. |
| SV, 5.3 |
msgdsize(D3) | Return number of bytes of data in a message. |
| SV, 5.3 |
msgpullup(D3) | Concatenate bytes in a message. |
| SV, 5.3 |
MUTEX_ALLOC(D3) | Allocate and initialize a mutex lock. | 6.2 | |
MUTEX_DEALLOC(D3) | Deinitialize and free a dynamically allocated mutex lock. | 6.2 | |
MUTEX_DESTROY(D3) | Deinitialize a mutex lock. | 6.2 | |
MUTEX_INIT(D3) | Initialize an existing mutex lock. | 6.2 | |
MUTEX_ISLOCKED(D3) | Test if a mutex lock is owned. | 6.2 | |
MUTEX_LOCK(D3) | Claim a mutex lock. | 6.2 | |
MUTEX_MINE(D3) | Test if a mutex lock is owned by this process. | 6.2 | |
MUTEX_TRYLOCK(D3) | Conditionally claim a mutex lock. | 6.2 | |
MUTEX_UNLOCK(D3) | Release a mutex lock. | 6.2 | |
MUTEX_WAITQ(D3) | Get the number of processes blocked by mutex lock. | 6.2 | |
ngeteblk(D3) | Allocate a buf_t and a buffer of specified size. | SV, 5.3 | |
noenable(D3) | Prevent a queue from being scheduled. |
| SV, 5.3 |
OTHERQ(D3) | Get a pointer to queue's partner queue. |
| SV, 5.3 |
pcmsg(D3) | Test whether a message is a priority control message. |
| SV, 5.3 |
phalloc(D3) | Allocate and initialize a pollhead structure. | SV, 5.3 | |
phfree(D3) | Free a pollhead structure. | SV, 5.3 | |
physiock(D3) | Validate and issue a raw I/O request | SV, 5.3 | |
pio_andb_rmw(D3) | Byte read-and-write. | 5.3 | |
pio_andh_rmw(D3) | 16-bit read-and-write. | 5.3 | |
pio_andw_rmw(D3) | 32-bit read-and-write. | 5.3 | |
pio_badaddr(D3) | Check for bus error when reading an address. | 5.3 | |
pio_badaddr_val(D3) | Check for bus error when reading an address and return the value read. | 5.3 | |
pio_bcopyin(D3) | Copy data from a bus address to kernel's virtual space. | 5.3 | |
pio_bcopyout(D3) | Copy data from kernel's virtual space to a bus address. | 5.3 | |
pio_mapaddr(D3) | Convert a bus address to a virtual address. | 5.3 | |
pio_mapalloc(D3) | Allocate a PIO map. | 5.3 | |
pio_mapfree(D3) | Free a PIO map. | 5.3 | |
pio_orb_rmw(D3) | Byte read-or-write. | 5.3 | |
pio_orh_rmw(D3) | 16-bit read-or-write. | 5.3 | |
pio_orw_rmw(D3) | 32-bit read-or-write. | 5.3 | |
pio_wbadaddr(D3) | Check for bus error when writing to an address. | 5.3 | |
pio_wbadaddr_val(D3) | Check for bus error when writing a specified value to an address. | 5.3 | |
pollwakeup(D3) | Inform polling processes that an event has occurred. | SV, 5.3 | |
pptophys(D3) | Convert page pointer to physical address. | SV, 5.3 | |
proc_ref(D3) | Obtain a reference to a process for signaling. | SV, 5.3 | |
proc_signal(D3) | Send a signal to a process. | SV, 5.3 | |
proc_unref(D3) | Release a reference to a process. | SV, 5.3 | |
psema(D3) | Perform a “P” or wait semaphore operation. | SV, 5.3 | |
ptob(D3) | Convert size in pages to size in bytes. | SV, 5.3 | |
pullupmsg(D3) | Concatenate bytes in a message. |
| SV, 5.3 |
putbq(D3) | Place a message at the head of a queue. |
| SV, 5.3 |
putctl(D3) | Send a control message to a queue. |
| SV, 5.3 |
putctl1(D3) | Send a control message with a one-byte parameter to a queue. |
| SV, 5.3 |
putnext(D3) | Send a message to the next queue. |
| SV, 5.3 |
putnextctl(D3) | Send a control message to a queue. |
| SV, 5.3 |
putnextctl1(D3) | Send a control message with a one-byte parameter to a queue. |
| SV, 5.3 |
putq(D3) | Put a message on a queue. |
| SV, 5.3 |
qenable(D3) | Schedule a queue's service routine to be run. |
| SV, 5.3 |
qprocsoff(D3) | Enable put and service routines. |
| SV, 5.3 |
qprocson(D3) | Disable put and service routines |
| SV, 5.3 |
qreply(D3) | Send a message in the opposite direction in a stream. |
| SV, 5.3 |
qsize(D3) | Find the number of messages on a queue. |
| SV, 5.3 |
RD(D3) | Get a pointer to the read queue. |
| SV, 5.3 |
rmalloc(D3) | Allocate space from a private space management map. | SV, 5.3 | |
rmallocmap(D3) | Allocate and initialize a private space management map. | SV, 5.3 | |
rmalloc_wait(D3) | Allocate resources from a space management map. | SV, 5.3 | |
rmfree(D3) | Release resources into a space management map. | SV, 5.3 | |
rmfreemap(D3) | Free a private space management map. | SV, 5.3 | |
rmvb(D3) | Remove a message block from a message. |
| SV, 5.3 |
rmvq(D3) | Remove a message from a queue. |
| SV, 5.3 |
RW_ALLOC(D3) | Allocate and initialize a reader/writer lock. | SV*, 5.3* | |
RW_DEALLOC(D3) | Deallocate a reader/writer lock. | SV*, 5.3* | |
RW_DESTROY(D3) | Deinitialize an existing reader/writer lock. | 6.2 | |
RW_INIT(D3) | Initialize an existing reader/writer lock. | 6.2 | |
RW_RDLOCK(D3) | Acquire a reader/writer lock as reader, waiting if necessary. | SV*, 5.3* | |
RW_TRYRDLOCK(D3) | Try to acquire a reader/writer lock as reader, returning a code if it is not free. | SV*, 5.3* | |
RW_TRYWRLOCK(D3) | Try to acquire a reader/writer lock as writer, returning a code if it is not free. | SV*, 5.3* | |
RW_UNLOCK(D3) | Release a reader/writer lock as reader or writer. | SV*, 5.3* | |
RW_WRLOCK(D3) | Acquire a reader/writer lock as writer, waiting if necessary. | SV*, 5.3* | |
SAMESTR(D3) | Test if next queue is of the same type. |
| SV, 5.3 |
scsi_abort() | Transmits a SCSI ABORT command. | 5.3* | |
scsi_alloc(D3) | Open a connection between a driver and a target device. | 5.3* | |
scsi_command(D3) | Transmit a SCSI command on the bus and return results. | 5.3* | |
scsi_free(D3) | Release connection to target device. | 5.3* | |
scsi_info(D3) | Issue the SCSI Inquiry command and return the results. | 5.3* | |
scsi_reset() | Resets the SCSI adapter or bus. | 5.3* | |
setgiovector() | Register a GIO interrupt handler. | 5.3 | |
setgioconfig() | Prepare a GIO slot for use. | 5.3 | |
sgset(D3) | Assign physical addresses to a vector of software scatter-gather registers. | 5.3 | |
sleep(D3) | Suspend process execution pending occurrence of an event. | SV, 5.3 | |
SLEEP_ALLOC(D3) | Allocate and initialize a sleep lock. | SV*, 5.3* | |
SLEEP_DEALLOC(D3) | Deinitialize and deallocate a dynamically allocated sleep lock. | SV*, 5.3* | |
SLEEP_DESTROY | Deinitialize a sleep lock. | 6.2 | |
SLEEP_INIT(D3) | Initialize an existing sleep lock. | 6.2 | |
SLEEP_LOCK(D3) | Acquire a sleep lock, waiting if necessary until the lock is free. | SV*, 5.3* | |
SLEEP_LOCKAVAIL(D3) | Query whether a sleep lock is available. | SV*, 5.3* | |
SLEEP_LOCK_SIG(D3) | Acquire a sleep lock, waiting if necessary until the lock is free or a signal is received. | SV*, 5.3* | |
SLEEP_TRYLOCK(D3) | Try to acquire a sleep lock, returning a code if it is not free. | SV*, 5.3* | |
SLEEP_UNLOCK(D3) | Release a sleep lock. | SV*, 5.3* | |
splbase(D3) | Block no interrupts. | SV, 5.3 | |
spltimeout(D3) | Block only timeout interrupts. | SV, 5.3 | |
spldisk(D3) | Block disk interrupts. | SV, 5.3 | |
splstr(D3) | Block STREAMS interrupts. | SV, 5.3 | |
spltty(D3) | Block disk, VME, serial interrupts. | SV, 5.3 | |
splhi(D3) | Block all I/O interrupts. | SV, 5.3 | |
spl0(D3) | Same as splbase(). | SV, 5.3 | |
splx(D3) | Restore previous interrupt level. | SV, 5.3 | |
strcat(D3) | Append one string to another. |
| SV, 5.3 |
strcpy(D3) | Copy a string. |
| SV, 5.3 |
streams_interrupt(D3) | Synchronize interrupt-level function with STREAMS mechanism. |
| 5.3 |
STREAMS_TIMEOUT(D 3) | Synchronize timeout with STREAMS mechanism. |
| 5.3 |
strlen(D3) | Return length of a string. |
| SV, 5.3 |
strlog(D3) | Submit messages to the log driver. |
| SV, 5.3 |
strncmp(D3) | Compare two strings for a specified length. |
| SV, 5.3 |
strncpy(D3) | Copy a string for a specified length. |
| SV, 5.3 |
strqget(D3) | Get information about a queue or band of the queue. |
| SV, 5.3 |
strqset(D3) | Change information about a queue or band of the queue. |
| SV, 5.3 |
subyte(D3) | Store a byte to user space. | 5.3 | |
suword(D3) | Store a word to user space. | 5.3 | |
SV_ALLOC(D3) | Allocate and initialize a synchronization variable. | SV*, 5.3* | |
SV_BROADCAST(D3) | Wake all processes sleeping on a synchronization variable. | SV*, 5.3* | |
SV_DEALLOC(D3) | Deinitialize and deallocate a synchronization variable. | SV*, 5.3* | |
SV_DESTROY | Deinitialize a synchronization variable. | 6.2 | |
SV_INIT | Initialize an existing synchronization variable. | 6.2 | |
SV_SIGNAL(D3) | Wake one process sleeping on a synchronization variable. | SV*, 5.3* | |
SV_WAIT(D3) | Sleep until a synchronization variable is signalled. | SV*, 5.3* | |
SV_WAIT_SIG(D3) | Sleep until a synchronization variable is signalled or a signal is received. | SV*, 5.3* | |
timeout(D3) | Schedule a function to be executed after a specified number of clock ticks. | SV, 5.3 | |
TRYLOCK(D3) | Try to acquire a basic lock, returning a code if the lock is not currently free. | SV*, 5.3* | |
uiomove(D3) | Copy data using uio_t. | SV, 5.3 | |
uiophysio(D3) | Validate a raw I/O request and pass to a strategy function. | 5.3 | |
unbufcall(D3) | Cancel a pending bufcall request. |
| SV, 5.3 |
undma(D3) | Unlock physical memory in user space. | 5.3 | |
unfreezestr(D3) | Unfreeze the state of a stream. |
| SV, 5.3 |
unlinkb(D3) | Remove a message block from the head of a message. |
| SV, 5.3 |
UNLOCK(D3) | Release a basic lock. | SV*, 5.3* | |
untimeout(D3) | Cancel a previous itimeout or fast_itimeout request. | SV*, 5.3* | |
ureadc(D3) | Copy a character to space described by uio_t. | SV, 5.3 | |
userdma(D3) | Lock physical memory in user space.small number of | 5.3 | |
userabi() | Get data sizes for the ABI of the user process (32- or 64-bit). | 6.2 | |
uwritec(D3) | Return a character from space described by uio_t. | SV, 5.3 | |
v_getaddr(D3) | Get the user virtual address associated with a vhandl_t. | 5.3 | |
v_gethandle(D3) | Get a unique identifier associated with a vhandl_t. | 5.3 | |
v_getlen(D3) | Get the length of user address space associated with a vhandl_t. | 5.3 | |
v_mapphys(D3) | Map kernel address space into user address space. | 5.3 | |
valusema(D3) | Return the value associated with a semaphore. | 5.3 | |
vme_adapter(D3) | Determine VME adapter that corresponds to a given memory address. | 5.3 | |
vme_ivec_alloc(D3) | Allocate a VME bus interrupt vector. | 5.3 | |
vme_ivec_free(D3) | Free a VME bus interrupt vector. | 5.3 | |
vme_ivec_set(D3) | Register a VME bus interrupt vector. | 5.3 | |
vsema(D3) | Perform a “V” or signal semaphore operation. | 5.3 | |
wakeup(D3) | Waken a process waiting for an event. | SV, 5.3 | |
wbadaddr(D3) | Test physical address for output. | SV, 5.3 | |
wbadaddr_val(D3) | Test physical address for output of specific value. | SV, 5.3 | |
WR(D3) | Get a pointer to the write queue. |
| SV, 5.3 |
The following SVR4 kernel functions are not implemented in IRIX: bioreset, dma_disable, dma_enable, dma_free_buf, dma_free_cb, dma_get_best_mode, dma_get_buf, dma_get_cb, dma_pageio, dma_prog, dma_swstart, dma_swsetup, drv_gethardware, hat_getkpfnum, hat_getppfnum, inb, inl, inw, kvtoppid, mod_drvattach, mod_drvdetach, outb, outl, outw, physmap, physmap_free, phystoppid, psignal, rdma_filter, repinsb, repinsd, repinsw, repoutsb, repoutsd, repoutsw, rminit, rmsetwant, SLEEP_LOCKOWNED, strncat, vtop.