75 lines
1.4 KiB
C
75 lines
1.4 KiB
C
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#include <stdio.h>
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#include <comedilib.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <sys/ioctl.h>
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#include <errno.h>
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#include <getopt.h>
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#include <ctype.h>
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#include <math.h>
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#include <sys/time.h>
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#include <string.h>
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#include "comedi_test.h"
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int test_bufconfig(void)
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{
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int ret;
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int len;
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int maxlen;
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printf("joe\n");
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ret = comedi_get_buffer_size(device,subdevice);
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if(ret<0){
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perror("comedi_get_buffer_size");
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}else{
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printf("buffer size %d\n",ret);
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}
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maxlen = comedi_get_max_buffer_size(device,subdevice);
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if(maxlen<0){
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perror("comedi_get_max_buffer_size");
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}else{
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printf("max buffer size %d\n",maxlen);
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}
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len=4096;
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printf("setting buffer size to %d\n",len);
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ret = comedi_set_buffer_size(device,subdevice,len);
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if(ret<0){
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perror("comedi_set_buffer_size");
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}else{
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printf("buffer size set to %d\n",ret);
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}
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ret = comedi_get_buffer_size(device,subdevice);
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if(ret<0){
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perror("comedi_get_buffer_size");
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}else{
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printf("buffer size now at %d\n",ret);
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}
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len=maxlen+4096;
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printf("setting buffer size past limit, %d\n",len);
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ret = comedi_set_buffer_size(device,subdevice,len);
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if(ret<0){
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perror("comedi_set_buffer_size");
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}else{
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printf("buffer size now at %d\n",ret);
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}
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len=maxlen;
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printf("setting buffer size to max, %d\n",len);
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ret = comedi_set_buffer_size(device,subdevice,len);
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if(ret<0){
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perror("comedi_set_buffer_size");
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}else{
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printf("buffer size now at %d\n",ret);
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}
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return 0;
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}
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