Streaming buffer size of subdevice
#include <comedilib.h>
int comedi_set_buffer_size(comedi_t * device, unsigned int subdevice, unsigned int size);
The function comedi_set_buffer_size changes the size of the streaming buffer for the subdevice specified by device and subdevice. The buffer size will be set to size bytes, rounded up to a multiple of the virtual memory page size. The virtual memory page size can be determined using sysconf(_SC_PAGE_SIZE).
This function does not require special privileges. However, it is limited to a (adjustable) maximum buffer size, which can be changed by a privileged user calling comedi_set_max_buffer_size, or running the program comedi_config.
The new buffer size in bytes is returned on success. On error, -1 is returned.
David Schleef <[email protected]>
Author.
Frank Mori Hess <[email protected]>
Author.
Herman Bruyninckx <[email protected]>
Author.
Bernd Porr <[email protected]>
Author.
Ian Abbott <[email protected]>
Author.
\('Eric Piel <[email protected]>
Author.
Copyright © 1998-2003 David Schleef
Copyright © 2001-2003, 2005, 2008 Frank Mori Hess
Copyright © 2002-2003 Herman Bruyninckx
Copyright © 2012 Bernd Porr
Copyright © 2012 Ian Abbott
Copyright © 2012 \('Eric Piel
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