madmaurice/pcsensor-temper
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Change to support multiple devices

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shakemid 2017-08-31 16:01:57 +09:00
parent 736f32ec25
commit 8955a0d5a6
2 changed files with 133 additions and 95 deletions
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9
README.md
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@ -21,9 +21,12 @@ $ make
# Usage
```
$ sudo ./pcsensor
2017/08/30 17:21:35
Temperature (internal) 96.58F 35.88C
Temperature (external) 214.60F 101.45C
2017/08/31 19:00:35
Temperature (0:internal) 81.28F 27.38C
Temperature (0:external) 214.60F 101.45C
2017/08/31 19:00:35
Temperature (1:internal) 81.16F 27.31C
Temperature (1:external) 214.60F 101.45C
```
libusb_detach_kernel_driver does not seem to work on Solaris. Thus, it looks necessary to unload hid driver manually.

145
pcsensor.c
View file

@ -49,6 +49,8 @@
#define INTERFACE1 0x00
#define INTERFACE2 0x01
#define MAX_DEV 8
const static int reqIntLen=8;
const static int reqBulkLen=8;
const static int endpoint_Int_in=0x82; /* endpoint 0x81 address for IN */
@ -68,15 +70,13 @@ static int formato=0;
static int mrtg=0;
static int calibration=0;
static libusb_context *ctx = NULL;
void bad(const char *why) {
fprintf(stderr,"Fatal error> %s\n",why);
exit(17);
}
libusb_context *ctx = NULL;
libusb_device_handle *find_lvr_winusb();
void usb_detach(libusb_device_handle *lvr_winusb, int iInterface) {
int ret;
@ -88,8 +88,7 @@ void usb_detach(libusb_device_handle *lvr_winusb, int iInterface) {
}
} else {
if(debug) {
printf("Detach failed: %s[%d]\n",
strerror(errno), errno);
printf("Detach failed: %s[%d]\n", strerror(errno), errno);
printf("Continuing anyway\n");
}
}
@ -100,8 +99,47 @@ void usb_detach(libusb_device_handle *lvr_winusb, int iInterface) {
}
}
libusb_device_handle* setup_libusb_access() {
libusb_device_handle *lvr_winusb;
int find_lvr_winusb(libusb_device_handle **handles) {
int i, s, cnt, numdev;
libusb_device **devs;
//handle = libusb_open_device_with_vid_pid(ctx, VENDOR_ID, PRODUCT_ID);
cnt = libusb_get_device_list(ctx, &devs);
if (cnt < 1) {
fprintf(stderr, "Could not find USB device: %d\n", cnt);
}
numdev = 0;
for (i = 0; i < cnt && numdev < MAX_DEV; i++) {
struct libusb_device_descriptor desc;
if ((s = libusb_get_device_descriptor(devs[i], &desc)) < 0) {
fprintf(stderr, "Could not get USB device descriptor: %d\n", s);
continue;
}
if (desc.idVendor == VENDOR_ID && desc.idProduct == PRODUCT_ID) {
if(debug) {
printf("lvr_winusb with Vendor Id: %x and Product Id: %x found.\n", VENDOR_ID, PRODUCT_ID);
}
if ((s = libusb_open(devs[i], &handles[numdev])) < 0) {
fprintf(stderr, "Could not open USB device: %d\n", s);
continue;
}
numdev++;
}
}
libusb_free_device_list(devs, 1);
return numdev;
}
int setup_libusb_access(libusb_device_handle **handles) {
int i,numdev;
libusb_init(&ctx);
@ -111,43 +149,34 @@ libusb_device_handle* setup_libusb_access() {
libusb_set_debug(ctx, 0); //LIBUSB_LOG_LEVEL_NONE
}
if(!(lvr_winusb = find_lvr_winusb())) {
fprintf(stderr, "Couldn't find the USB device, Exiting\n");
return NULL;
if((numdev = find_lvr_winusb(handles)) < 1) {
fprintf(stderr, "Couldn't find the USB device, Exiting: %d\n", numdev);
return -1;
}
usb_detach(lvr_winusb, INTERFACE1);
usb_detach(lvr_winusb, INTERFACE2);
for (i = 0; i < numdev; i++) {
usb_detach(handles[i], INTERFACE1);
usb_detach(handles[i], INTERFACE2);
if (libusb_set_configuration(lvr_winusb, 0x01) < 0) {
if (libusb_set_configuration(handles[i], 0x01) < 0) {
fprintf(stderr, "Could not set configuration 1\n");
return NULL;
return -1;
}
// Microdia tiene 2 interfaces
int s;
if ( ( s = libusb_claim_interface(lvr_winusb, INTERFACE1) ) != 0) {
if ( ( s = libusb_claim_interface(handles[i], INTERFACE1) ) < 0) {
fprintf(stderr, "Could not claim interface. Error:%d\n", s);
return NULL;
return -1;
}
if ( ( s = libusb_claim_interface(lvr_winusb, INTERFACE2) ) != 0) {
if ( ( s = libusb_claim_interface(handles[i], INTERFACE2) ) < 0) {
fprintf(stderr, "Could not claim interface. Error:%d\n", s);
return NULL;
return -1;
}
}
return lvr_winusb;
}
libusb_device_handle *find_lvr_winusb() {
libusb_device_handle *handle;
handle = libusb_open_device_with_vid_pid(ctx, VENDOR_ID, PRODUCT_ID);
if (!handle) {
fprintf(stderr, "Could not open USB device\n");
return NULL;
}
return handle;
return numdev;
}
void ini_control_transfer(libusb_device_handle *dev) {
@ -236,7 +265,8 @@ void ex_program(int sig) {
}
int main( int argc, char **argv) {
libusb_device_handle *lvr_winusb = NULL;
libusb_device_handle **handles;
int numdev,i;
float tempInC;
float tempOutC;
int c;
@ -296,9 +326,7 @@ int main( int argc, char **argv) {
if (isprint (optopt))
fprintf (stderr, "Unknown option `-%c'.\n", optopt);
else
fprintf (stderr,
"Unknown option character `\\x%x'.\n",
optopt);
fprintf (stderr, "Unknown option character `\\x%x'.\n", optopt);
exit(EXIT_FAILURE);
}
@ -307,27 +335,31 @@ int main( int argc, char **argv) {
exit(EXIT_FAILURE);
}
if ((lvr_winusb = setup_libusb_access()) == NULL) {
handles = calloc(MAX_DEV, sizeof(libusb_device_handle*));
if ((numdev = setup_libusb_access(handles)) < 1) {
exit(EXIT_FAILURE);
}
(void) signal(SIGINT, ex_program);
ini_control_transfer(lvr_winusb);
for (i = 0; i < numdev; i++) {
ini_control_transfer(handles[i]);
control_transfer(lvr_winusb, uTemperatura );
interrupt_read(lvr_winusb);
control_transfer(handles[i], uTemperatura );
interrupt_read(handles[i]);
control_transfer(lvr_winusb, uIni1 );
interrupt_read(lvr_winusb);
control_transfer(handles[i], uIni1 );
interrupt_read(handles[i]);
control_transfer(lvr_winusb, uIni2 );
interrupt_read(lvr_winusb);
interrupt_read(lvr_winusb);
control_transfer(handles[i], uIni2 );
interrupt_read(handles[i]);
interrupt_read(handles[i]);
}
do {
control_transfer(lvr_winusb, uTemperatura );
interrupt_read_temperatura(lvr_winusb, &tempInC, &tempOutC);
for (i = 0; i < numdev; i++) {
control_transfer(handles[i], uTemperatura );
interrupt_read_temperatura(handles[i], &tempInC, &tempOutC);
t = time(NULL);
local = localtime(&t);
@ -345,7 +377,7 @@ int main( int argc, char **argv) {
local->tm_hour,
local->tm_min);
printf("pcsensor\n");
printf("pcsensor:%d\n", i);
} else {
printf("%04d/%02d/%02d %02d:%02d:%02d\n",
local->tm_year +1900,
@ -356,25 +388,28 @@ int main( int argc, char **argv) {
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));
printf("Temperature (%d:internal) %.2fF\n", i, (9.0 / 5.0 * tempInC + 32.0));
printf("Temperature (%d:external) %.2fF\n", i, (9.0 / 5.0 * tempOutC + 32.0));
} else if (formato==1) {
printf("Temperature (internal) %.2fC\n", tempInC);
printf("Temperature (external) %.2fC\n", tempOutC);
printf("Temperature (%d:internal) %.2fC\n", i, tempInC);
printf("Temperature (%d:external) %.2fC\n", i, 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);
printf("Temperature (%d:internal) %.2fF %.2fC\n", i, (9.0 / 5.0 * tempInC + 32.0), tempInC);
printf("Temperature (%d:external) %.2fF %.2fC\n", i, (9.0 / 5.0 * tempOutC + 32.0), tempOutC);
}
}
if (!bsalir)
sleep(seconds);
}
} while (!bsalir);
libusb_release_interface(lvr_winusb, INTERFACE1);
libusb_release_interface(lvr_winusb, INTERFACE2);
for (i = 0; i < numdev; i++) {
libusb_release_interface(handles[i], INTERFACE1);
libusb_release_interface(handles[i], INTERFACE2);
libusb_close(lvr_winusb);
libusb_close(handles[i]);
}
return 0;
}