SND_DMA_ALLOC_PAGES_(9) Sound Devices SND_DMA_ALLOC_PAGES_(9)NAME
snd_dma_alloc_pages_fallback - allocate the buffer area according to the given type with fallback
SYNOPSIS
int snd_dma_alloc_pages_fallback(int type, struct device * device, size_t size, struct snd_dma_buffer * dmab);
ARGUMENTS
type
the DMA buffer type
device
the device pointer
size
the buffer size to allocate
dmab
buffer allocation record to store the allocated data
DESCRIPTION
Calls the memory-allocator function for the corresponding buffer type. When no space is left, this function reduces the size and tries to
allocate again. The size actually allocated is stored in res_size argument.
Returns zero if the buffer with the given size is allocated successfuly, other a negative value at error.
COPYRIGHT Kernel Hackers Manual 2.6. July 2010 SND_DMA_ALLOC_PAGES_(9)
Check Out this Related Man Page
TIFFBUFFER(3T)TIFFBUFFER(3T)NAME
TIFFReadBufferSetup, TIFFWriteBufferSetup - I/O buffering control routines
SYNOPSIS
#include <tiffio.h>
int TIFFReadBufferSetup(TIFF*, tdata_t buffer, tsize_t size);
int TIFFWriteBufferSetup(TIFF*, tdata_t buffer, tsize_t size);
DESCRIPTION
The following routines are provided for client-control of the I/O buffers used by the library. Applications need never use these routines;
they are provided only for ``intelligent clients'' that wish to optimize memory usage and/or eliminate potential copy operations that can
occur when working with images that have data stored without compression.
TIFFReadBufferSetup sets up the data buffer used to read raw (encoded) data from a file. If the specified pointer is NULL (zero), then a
buffer of the appropriate size is allocated. Otherwise the caller must guarantee that the buffer is large enough to hold any individual
strip of raw data. TIFFReadBufferSetup returns a non-zero value if the setup was successful and zero otherwise.
TIFFWriteBufferSetup sets up the data buffer used to write raw (encoded) data to a file. If the specified size is -1 then the buffer size
is selected to hold a complete tile or strip, or at least 8 kilobytes, whichever is greater. If the specified buffer is NULL (zero), then
a buffer of the appropriate size is dynamically allocated. TIFFWriteBufferSetup returns a non-zero value if the setup was successful and
zero otherwise.
DIAGNOSTICS
%s: No space for data buffer at scanline %ld. TIFFReadBufferSetup was unable to dynamically allocate space for a data buffer.
%s: No space for output buffer. TIFFWriteBufferSetup was unable to dynamically allocate space for a data buffer.
SEE ALSO libtiff(3T)
October 15, 1995 TIFFBUFFER(3T)
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