int main( int argc, char **argv) {
usb_dev_handle *lvr_winusb = NULL;
float tempInC;
float tempOutC;
int c;
struct tm *local;
time_t t;
while ((c = getopt (argc, argv, "mfcvhl::a:")) != -1)
switch (c)
{
case 'v':
debug = 1;
break;
case 'c':
formato=1; //Celsius
break;
case 'f':
formato=2; //Fahrenheit
break;
case 'm':
mrtg=1;
break;
case 'l':
if (optarg!=NULL){
if (!sscanf(optarg,"%i",&seconds)==1) {
fprintf (stderr, "Error: '%s' is not numeric.\n", optarg);
exit(EXIT_FAILURE);
} else {
bsalir = 0;
break;
}
} else {
bsalir = 0;
seconds = 5;
break;
}
case 'a':
if (!sscanf(optarg,"%i",&calibration)==1) {
fprintf (stderr, "Error: '%s' is not numeric.\n", optarg);
exit(EXIT_FAILURE);
} else {
break;
}
case '?':
case 'h':
printf("pcsensor version %s\n",VERSION);
printf(" Aviable options:\n");
printf(" -h help\n");
printf(" -v verbose\n");
printf(" -l[n] loop every 'n' seconds, default value is 5s\n");
printf(" -c output only in Celsius\n");
printf(" -f output only in Fahrenheit\n");
printf(" -a[n] increase or decrease temperature in 'n' degrees for device calibration\n");
printf(" -m output for mrtg integration\n");
exit(EXIT_FAILURE);
default:
if (isprint (optopt))
fprintf (stderr, "Unknown option `-%c'.\n", optopt);
else
fprintf (stderr,
"Unknown option character `\\x%x'.\n",
optopt);
exit(EXIT_FAILURE);
}
if (optind < argc) {
fprintf(stderr, "Non-option ARGV-elements, try -h for help.\n");
exit(EXIT_FAILURE);
}
if ((lvr_winusb = setup_libusb_access()) == NULL) {
exit(EXIT_FAILURE);
}
(void) signal(SIGINT, ex_program);
ini_control_transfer(lvr_winusb);
control_transfer(lvr_winusb, uTemperatura );
interrupt_read(lvr_winusb);
control_transfer(lvr_winusb, uIni1 );
interrupt_read(lvr_winusb);
control_transfer(lvr_winusb, uIni2 );
interrupt_read(lvr_winusb);
interrupt_read(lvr_winusb);
do {
control_transfer(lvr_winusb, uTemperatura );
interrupt_read_temperatura(lvr_winusb, &tempInC, &tempOutC);
t = time(NULL);
local = localtime(&t);
if (mrtg) {
if (formato==2) {
printf("%.2f\n", (9.0 / 5.0 * tempInC + 32.0));
printf("%.2f\n", (9.0 / 5.0 * tempInC + 32.0));
} else {
printf("%.2f\n", tempInC);
printf("%.2f\n", tempInC);
}
printf("%02d:%02d\n",
local->tm_hour,
local->tm_min);
printf("pcsensor\n");
} else {
printf("%04d/%02d/%02d %02d:%02d:%02d\n",
local->tm_year +1900,
local->tm_mon + 1,
local->tm_mday,
local->tm_hour,
local->tm_min,
local->tm_sec);
if (formato==2) {
printf("Temperature (internal) %.2fF\n", (9.0 / 5.0 * tempInC + 32.0));
printf("Temperature (external) %.2fF\n", (9.0 / 5.0 * tempOutC + 32.0));
} else if (formato==1) {
printf("Temperature (internal) %.2fC\n", tempInC);
printf("Temperature (external) %.2fC\n", tempOutC);
} else {
printf("Temperature (internal) %.2fF %.2fC\n", (9.0 / 5.0 * tempInC + 32.0), tempInC);
printf("Temperature (external) %.2fF %.2fC\n", (9.0 / 5.0 * tempOutC + 32.0), tempOutC);
}
}
if (!bsalir)
sleep(seconds);
} while (!bsalir);
usb_release_interface(lvr_winusb, INTERFACE1);
usb_release_interface(lvr_winusb, INTERFACE2);
usb_close(lvr_winusb);
return 0;
}
static int readtemp(float *temp) {
int r;
uint8_t question1[] = { 0x01, 0x80, 0x33, 0x01, 0x00, 0x00, 0x00, 0x00 };
uint8_t question2[] = { 0x01, 0x82, 0x77, 0x01, 0x00, 0x00, 0x00, 0x00 };
uint8_t question3[] = { 0x01, 0x86, 0xff, 0x01, 0x00, 0x00, 0x00, 0x00 };
uint8_t response[8];
if (debug)
printf("sending init control transfer\n");
r = init_control_transfer();
if (r < 0)
return r;
if (debug)
printf("sending control transfer question1\n");
r = control_transfer(question1, sizeof(question1));
if (r < 0)
return r;
if (debug)
printf("reading interrupt response\n");
r = interrupt_read(response, sizeof(response));
if (r < 0)
return r;
if (debug)
printf("sending control transfer question2\n");
r = control_transfer(question2, sizeof(question2));
if (r < 0)
return r;
if (debug)
printf("reading interrupt response\n");
r = interrupt_read(response, sizeof(response));
if (r < 0)
return r;
if (debug)
printf("sending control transfer question3\n");
r = control_transfer(question3, sizeof(question3));
if (r < 0)
return r;
if (debug)
printf("reading interrupt response\n");
r = interrupt_read(response, sizeof(response));
if (r < 0)
return r;
if (debug)
printf("reading interrupt response\n");
r = interrupt_read(response, sizeof(response));
if (r < 0)
return r;
if (debug)
printf("sending control transfer question1\n");
r = control_transfer(question1, sizeof(question1));
if (r < 0)
return r;
if (debug)
printf("reading temperature interrupt response\n");
r = interrupt_read(response, sizeof(response));
if (r < 0)
return r;
*temp = (response[3] & 0xFF) + (response[2] << 8);
*temp = *temp * (125.0 / 32000.0);
return 0;
}
