RELAY_ALLOC_BUF(9) relay interface support RELAY_ALLOC_BUF(9)NAME
relay_alloc_buf - allocate a channel buffer
void * relay_alloc_buf(struct rchan_buf * buf, size_t * size);
the buffer struct
total size of the buffer
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
int bp_copyout(void *driverbuf, struct buf *bp, offset_t offset,
Architecture independent level 1 (DDI/DKI).
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.
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.
Under normal conditions, 0 is returned to indicate a successful copy. Otherwise, -1 is returned if bp references invalid pages.
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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