Name
comedi_do_insn — perform instruction
Synopsis
#include <comedilib.h>
| int comedi_do_insn( | comedi_t * device, | 
|  | comedi_insn * instruction ); | 
 
      Description
    
The function comedi_do_insn performs a single instruction.
    
      Return value
    
If successful, returns a non-negative number.  For the case
of INSN_READ or INSN_WRITE instructions,
comedi_do_insn returns the number of samples
read or written, which may be less than the number requested.
If there is an error, -1 is returned.