Analog Devices VisualDSP++ 5.0 Service Manual page 418

Creating One-Dimensional Buffers
•
ElementWidth
element sent out or read in.
•
CallbackParameter
not call back the application after the device driver processes the
buffer. If non-NULL, the device driver invokes the application's
callback function after the buffer is processed by the device driver,
passing this value as the third parameter to the callback function.
• – This field points to the next one-dimensional buffer in the
pNext
chain, if any. If NULL, the given buffer is the only buffer provided
to the
adi_dev_Read()
If non-NULL, this field contains the address of the next
one-dimensional buffer in the chain of buffers passed to the
dev_Read()
•
pAdditionalInfo
This field is not used for most device drivers. For information
describing whether this field is used by the particular device driver,
refer to the documentation specific to the device driver, located in
the
.../Blackfin/doc
•
ProcessedFlag
processing the buffer. For information describing whether this field
is used by the particular device driver, refer to the documentation
specific to the device driver, located in the
subdirectory.
10-20
– This field indicates the width (in bytes) of each
– If this field is NULL, the device driver does
or
adi_dev_Write()
or
adi_dev_Write()
– This field is a device driver-dependent value.
subdirectory.
– Some device drivers set this value to TRUE after
VisualDSP++ 5.0 Device Drivers and System
Services Manual for Blackfin Processors
function.
function.
.../Blackfin/doc
adi_