Am 13.01.2017 um 18:23 schrieb bdrmachine:
> Wouldsomeone Please help me with the input string needed forthe
> owcapiexample program. I am trying to read my 18b20 sensors that
> areattached to my Raspberry Pi 3 using the I2C interface. I can
> readthem with my browser @ “localhost:2121”. The problem is I cannot
> get the example code that was loaded
> at(/usr/share/doc/libowfs-dev/examples/owcapi/C) to work. I need
> helpfiguring out what parameters to pass to ./owcapiexample ??? ????
> Ihave spent countless hours at this. Please help. ThanksBrian
>
Please understand this very simple test program first:
=== Makefile
========================================================================
.PHONY: all clean
CFLAGS=-I /opt/owfs/include/
LDFLAGS=-L /opt/owfs/lib64/ -lowcapi
all: owcapitest
clean:
-rm *.o owcapitest
owcapitest: owcapitest.o
$(CC) $(LDFLAGS) -o $@ $^
=== owcapitest.c
====================================================================
#include <stdio.h>
#include <stdlib.h>
#include <owcapi.h>
int main(int argc, char* argv[]) {
size_t rs;
char *buf;
ssize_t rss;
if ((rss = OW_init("-s localhost:4304")) < 0) {
perror("OW_init failed");
exit(EXIT_FAILURE);
}
if ((rs = OW_get("/uncached/10.AE9C54020800/temperature", &buf, &rs)) <
0) {
perror("OW_get failed");
exit(EXIT_FAILURE);
}
printf("%s\n",buf);
}
=====================================================================================
Kind regards
Jan
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