comedi_get_buffer_read_count — streaming buffer read count


#include <comedilib.h>
int comedi_get_buffer_read_count(comedi_t * device,
 unsigned int subdevice,
 unsigned int * read_count);


The function comedi_get_buffer_read_count is used on a subdevice that has a Comedi command in progress to get the number of bytes that have been read from the buffer, modulo UINT_MAX + 1. The value is stored in *read_count.

Return value

On success, 0 is returned. On failure, -1 is returned.