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biosize(9f) [bsd man page]

biosize(9F)						   Kernel Functions for Drivers 					       biosize(9F)

biosize - returns size of a buffer structure SYNOPSIS
#include <sys/ddi.h> #include <sys/sunddi.h> size_tbiosize(void); INTERFACE LEVEL
Solaris DDI specific (Solaris DDI). DESCRIPTION
The biosize() function returns the size in bytes of the buf(9S) structure. The biosize() function is used by drivers in combination with kmem_alloc(9F) and bioinit(9F) to allocate buffer structures embedded in other data structures. CONTEXT
The biosize() function can be called from any context. SEE ALSO
biofini(9F), bioinit(9F), getrbuf(9F), kmem_alloc(9F), buf(9S) Writing Device Drivers SunOS 5.10 20 Nov 1996 biosize(9F)

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bioinit(9F)						   Kernel Functions for Drivers 					       bioinit(9F)

bioinit - initialize a buffer structure SYNOPSIS
#include <sys/ddi.h> #include <sys/sunddi.h> voidbioinit(struct buf *bp); INTERFACE LEVEL
Solaris DDI specific (Solaris DDI). PARAMETERS
bp Pointer to the buffer header structure. DESCRIPTION
The bioinit() function initializes a buf(9S) structure. A buffer structure contains state information which has to be initialized if the memory for the buffer was allocated using kmem_alloc(9F). This is not necessary for a buffer allocated using getrbuf(9F) because getrbuf() will call bioinit() directly. CONTEXT
The bioinit() function can be called from any context. EXAMPLES
Example 1: Using bioinit() struct buf *bp = kmem_alloc(biosize(), KM_SLEEP); bioinit(bp); /* use buffer */ SEE ALSO
biofini(9F), bioreset(9F), biosize(9F), getrbuf(9F), kmem_alloc(9F), buf(9S) Writing Device Drivers SunOS 5.10 20 Nov 1996 bioinit(9F)
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