snd_pcm_lib_get_vmalloc_page(9) [suse man page]

SND_PCM_LIB_GET_VMAL(9) 					   Sound Devices					   SND_PCM_LIB_GET_VMAL(9)

NAME

       snd_pcm_lib_get_vmalloc_page - map vmalloc buffer offset to page struct

SYNOPSIS

       struct page * snd_pcm_lib_get_vmalloc_page(struct snd_pcm_substream * substream, unsigned long offset);

ARGUMENTS

       substream
	   the substream with a buffer allocated by snd_pcm_lib_alloc_vmalloc_buffer

       offset
	   offset in the buffer

DESCRIPTION

       This function is to be used as the page callback in the PCM ops.

COPYRIGHT

Kernel Hackers Manual 2.6.					     July 2010						   SND_PCM_LIB_GET_VMAL(9)

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)