RELAY_ALLOC_BUF(9) relay interface support RELAY_ALLOC_BUF(9)NAME
relay_alloc_buf - allocate a channel buffer
SYNOPSIS
void * relay_alloc_buf(struct rchan_buf * buf, size_t * size);
ARGUMENTS
buf
the buffer struct
size
total size of the buffer
DESCRIPTION
Returns a pointer to the resulting buffer, NULL if unsuccessful. The passed in size will get page aligned, if it isn't already.
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 RELAY_ALLOC_BUF(9)
Check Out this Related Man Page
bp_copyout(9F) Kernel Functions for Drivers bp_copyout(9F)NAME
bp_copyout - copy from a driver buffer into a buf(9S)SYNOPSIS
#include <sys/types.h>
#include <sys/buf.h>
int bp_copyout(void *driverbuf, struct buf *bp, offset_t offset,
size_t size);
INTERFACE LEVEL
Architecture independent level 1 (DDI/DKI).
PARAMETERS
bp Pointer to the buffer header structure to copy to.
driverbuf Driver buffer to copy from.
offset Offset into bp where to start copying.
size Size of copy.
DESCRIPTION
The bp_copyout() function copies size bytes starting from the driver buffer driverbuf to offset bytes into the memory associated with bp.
The offset only applies to bp.
RETURN VALUES
Under normal conditions, 0 is returned to indicate a successful copy. Otherwise, -1 is returned if bp references invalid pages.
CONTEXT
The bp_copyout() function can be called from user or kernel context only.
SEE ALSO bp_copyin(9F), bp_mapin(9F), bp_mapout(9F), ddi_copyout(9F), buf(9S)SunOS 5.11 16 Oct 2007 bp_copyout(9F)
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