int usbhidOpenDevice(usbDevice_t **device, int vendor, char *vendorName, int product, char *productName)
{
printf("Opening device...\n");
struct usb_bus *bus;
struct usb_device *dev;
usb_dev_handle *handle = NULL;
int errorCode = USBOPEN_ERR_NOTFOUND;
static int didUsbInit = 0;
if(!didUsbInit){
usb_init();
didUsbInit = 1;
}
printf("Busses = %d\n", usb_find_busses());
printf("Devices = %d\n", usb_find_devices());
for(bus=usb_get_busses(); bus; bus=bus->next){
printf("bus...\n");
for(dev=bus->devices; dev; dev=dev->next){
printf("dev...\n");
if(dev->descriptor.idVendor == vendor && dev->descriptor.idProduct == product){
printf("Device with matching ID's found!\n");
char string[256];
int len;
handle = usb_open(dev); /* we need to open the device in order to query strings */
if(!handle){
errorCode = USBOPEN_ERR_ACCESS;
fprintf(stderr, "Warning: cannot open USB device: %s\n", usb_strerror());
continue;
}
if(vendorName == NULL && productName == NULL){ /* name does not matter */
break;
}
/* now check whether the names match: */
len = usbhidGetStringAscii(handle, dev->descriptor.iManufacturer, string, sizeof(string));
if(len < 0){
errorCode = USBOPEN_ERR_IO;
fprintf(stderr, "Warning: cannot query manufacturer for device: %s\n", usb_strerror());
}else{
errorCode = USBOPEN_ERR_NOTFOUND;
/* fprintf(stderr, "seen device from vendor ->%s<-\n", string); */
if(strcmp(string, vendorName) == 0){
len = usbhidGetStringAscii(handle, dev->descriptor.iProduct, string, sizeof(string));
if(len < 0){
errorCode = USBOPEN_ERR_IO;
fprintf(stderr, "Warning: cannot query product for device: %s\n", usb_strerror());
}else{
errorCode = USBOPEN_ERR_NOTFOUND;
/* fprintf(stderr, "seen product ->%s<-\n", string); */
if(strcmp(string, productName) == 0)
break;
}
}
}
usb_close(handle);
handle = NULL;
}
}
if(handle)
break;
}
if(handle != NULL){
errorCode = 0;
*device = (void *)handle;
}
return errorCode;
}
int usbhidOpenDevice(usbDevice_t** device, int vendor, const char* vendorName, int product, const char* productName)
{
struct usb_bus* bus;
struct usb_device* dev;
usb_dev_handle* handle = NULL;
int errorCode = USBOPEN_ERR_NOTFOUND;
static int didUsbInit = 0;
if (!didUsbInit)
{
usb_init();
didUsbInit = 1;
}
usb_find_busses();
usb_find_devices();
for (bus = usb_get_busses(); bus; bus = bus->next)
{
for (dev = bus->devices; dev; dev = dev->next)
{
if (dev->descriptor.idVendor == vendor && dev->descriptor.idProduct == product)
{
char string[256];
int len;
handle = usb_open(dev); // we need to open the device in order to query strings
if (!handle)
{
errorCode = USBOPEN_ERR_ACCESS;
DEBUG_PRINT(("Warning: cannot open USB device: %s\n", usb_strerror()));
continue;
}
if (vendorName == NULL && productName == NULL) // name does not matter
break;
// now check whether the names match:
len = usbhidGetStringAscii(handle, dev->descriptor.iManufacturer, string, sizeof(string));
if (len < 0)
{
errorCode = USBOPEN_ERR_IO;
DEBUG_PRINT(("Warning: cannot query manufacturer for device: %s\n", usb_strerror()));
} else {
errorCode = USBOPEN_ERR_NOTFOUND;
if (strcmp(string, vendorName) == 0)
{
len = usbhidGetStringAscii(handle, dev->descriptor.iProduct, string, sizeof(string));
if (len < 0)
{
errorCode = USBOPEN_ERR_IO;
DEBUG_PRINT(("Warning: cannot query product for device: %s\n", usb_strerror()));
} else {
errorCode = USBOPEN_ERR_NOTFOUND;
if (strcmp(string, productName) == 0)
break;
}
}
}
usb_close(handle);
handle = NULL;
}
}
if (handle)
break;
}
if (handle != NULL)
{
errorCode = USBOPEN_SUCCESS;
*device = (usbDevice_t*)handle;
}
return errorCode;
}
const T_HID_HDL* HidOpen( const char* const my_manufacturer, const char* const my_product )
{
struct usb_bus *bus;
struct usb_device *dev;
usb_dev_handle *handle = NULL;
T_HID_HDL_LOCAL* libhid_handle = NULL;
const int my_product_id = MY_PID;
usb_find_busses();
usb_find_devices();
for( bus = usb_get_busses(); bus; bus = bus->next ) {
for( dev = bus->devices; dev; dev = dev->next ) {
gdev = dev; /* @@@ add by tanioka */
#if DEBUG
printf("dev=%04x:%04x\n",dev->descriptor.idVendor,dev->descriptor.idProduct);
#endif
if( (dev->descriptor.idVendor == MY_VID)
&& (dev->descriptor.idProduct == my_product_id) ) {
char string[256];
int len;
handle = usb_open( dev ); /* we need to open the device in order to query strings */
if(!handle){
fprintf( stderr, "Warning: cannot open USB device: %s\n", usb_strerror() );
continue;
}
if( usb_set_configuration( handle, dev->config->bConfigurationValue ) < 0 ) {
fprintf( stderr, "!!usb_set_configuration Error.\n" );
}
#if DEBUG
printf( "!!usb_set_configuration.\n" );
#endif
if( usb_claim_interface( handle, dev->config->interface->altsetting->bInterfaceNumber ) < 0 ) {
fprintf( stderr, "!!usb_claim_interface Error.\n" );
}
#if DEBUG
printf( "usb_claim_interface.\n" );
#endif
/* now check whether the names match: */
len = usbhidGetStringAscii( handle, dev->descriptor.iManufacturer, string, sizeof(string) );
if( len < 0 ) {
fprintf( stderr, "Warning: cannot query manufacturer for device: %s\n", usb_strerror() );
} else {
#if DEBUG
printf( "seen device from vendor [%s]\n", string );
#endif
if( strcmp( string, my_manufacturer ) == 0 ) {
len = usbhidGetStringAscii( handle, dev->descriptor.iProduct, string, sizeof(string) );
if( len < 0 ) {
fprintf( stderr, "Warning: cannot query product for device: %s\n", usb_strerror() );
} else {
#if DEBUG
fprintf( stderr, "seen product [%s]\n", string );
#endif
if( strcmp( string, my_product ) == 0 ) {
break;
}
}
}
}
usb_close( handle );
handle = NULL;
}
}
}
if(handle != NULL){
libhid_handle = malloc( sizeof(T_HID_HDL_LOCAL) );
if( libhid_handle ) {
libhid_handle->handle = handle;
}
else {
// usb_reset( (void*)handle );
usb_close( (void*)handle );
}
}
#if LINUX
setuid(getuid()); // @@@ by iruka
#endif
return (T_HID_HDL*)libhid_handle;
}
