opening USB device with libUSB on a virtual machine
I'm trying to implement the code from the following YouTube video by moellerIO:
https://www.youtube.com/results?search_query=libusb
#include <iostream>
#include <libusb-1.0/libusb.h>
using namespace std;
union int_thing {
unsigned char usb_data[4];
int32_t number;
};
void error(string s, int err) {
cout << s << " Error: " << libusb_error_name(err) << endl;
exit(err);
}
int main() {
int transfer_size;
int err;
libusb_device_handle* dev;
libusb_init(NULL);
dev = libusb_open_device_with_vid_pid(NULL, 0x0781 , 0x5575);
if (dev == NULL) {
cout << "DEVICE NOT FOUND, exiting." << endl;
return -1;
}
err = libusb_claim_interface(dev, 0);
if (err)
error("Cannot claim interface!", err);
err = libusb_set_interface_alt_setting(dev, 0, 0);
if (err)
error("Cannot set alternate settings!", err);
union int_thing number;
while (true) {
cout << "Send A number: ";
while (true) {
cin >> number.number;
if (cin.good())
break;
//cin.clear;
//cin.ignore( numeric_limits<streamsize>::max(), 'n');
cout << "Try a number that can be expressed in 32 bits: ";
}
err = libusb_bulk_transfer(dev, 0x02, number.usb_data, sizeof(union int_thing), &transfer_size, 1000);
if (err)
error("Bulk OUT transfer failed!", err);
}
}
I'm trying to make a successful connection to a usb device, claim its interface and send a number to it. later on i will follow the exact protocols for transferring information to a mass storage device, but wright now i will be happy with establishing a connection.
the issue is that I'm getting "DEVICE NOT FOUND" all the time.
I am sure that I'm using the right credentials witch i picked up with
lsusb -v -d 0781:5575
not sure what I am doing wrong but I have a feeling it has something to do with using a VM? can anyone give me a tip?
by the way, I'm using Ubuntu on vmware workstation.
c++ ubuntu virtual-machine vmware libusb
asked Jan 1 at 7:50
JohnnyJohnny
33
add a comment |
I'm trying to implement the code from the following YouTube video by moellerIO:
https://www.youtube.com/results?search_query=libusb
#include <iostream>
#include <libusb-1.0/libusb.h>
using namespace std;
union int_thing {
unsigned char usb_data[4];
int32_t number;
};
void error(string s, int err) {
cout << s << " Error: " << libusb_error_name(err) << endl;
exit(err);
}
int main() {
int transfer_size;
int err;
libusb_device_handle* dev;
libusb_init(NULL);
dev = libusb_open_device_with_vid_pid(NULL, 0x0781 , 0x5575);
if (dev == NULL) {
cout << "DEVICE NOT FOUND, exiting." << endl;
return -1;
}
err = libusb_claim_interface(dev, 0);
if (err)
error("Cannot claim interface!", err);
err = libusb_set_interface_alt_setting(dev, 0, 0);
if (err)
error("Cannot set alternate settings!", err);
union int_thing number;
while (true) {
cout << "Send A number: ";
while (true) {
cin >> number.number;
if (cin.good())
break;
//cin.clear;
//cin.ignore( numeric_limits<streamsize>::max(), 'n');
cout << "Try a number that can be expressed in 32 bits: ";
}
err = libusb_bulk_transfer(dev, 0x02, number.usb_data, sizeof(union int_thing), &transfer_size, 1000);
if (err)
error("Bulk OUT transfer failed!", err);
}
}
I'm trying to make a successful connection to a usb device, claim its interface and send a number to it. later on i will follow the exact protocols for transferring information to a mass storage device, but wright now i will be happy with establishing a connection.
the issue is that I'm getting "DEVICE NOT FOUND" all the time.
I am sure that I'm using the right credentials witch i picked up with
lsusb -v -d 0781:5575
not sure what I am doing wrong but I have a feeling it has something to do with using a VM? can anyone give me a tip?
by the way, I'm using Ubuntu on vmware workstation.
c++ ubuntu virtual-machine vmware libusb
asked Jan 1 at 7:50
JohnnyJohnny
33
add a comment |
I'm trying to implement the code from the following YouTube video by moellerIO:
https://www.youtube.com/results?search_query=libusb
#include <iostream>
#include <libusb-1.0/libusb.h>
using namespace std;
union int_thing {
unsigned char usb_data[4];
int32_t number;
};
void error(string s, int err) {
cout << s << " Error: " << libusb_error_name(err) << endl;
exit(err);
}
int main() {
int transfer_size;
int err;
libusb_device_handle* dev;
libusb_init(NULL);
dev = libusb_open_device_with_vid_pid(NULL, 0x0781 , 0x5575);
if (dev == NULL) {
cout << "DEVICE NOT FOUND, exiting." << endl;
return -1;
}
err = libusb_claim_interface(dev, 0);
if (err)
error("Cannot claim interface!", err);
err = libusb_set_interface_alt_setting(dev, 0, 0);
if (err)
error("Cannot set alternate settings!", err);
union int_thing number;
while (true) {
cout << "Send A number: ";
while (true) {
cin >> number.number;
if (cin.good())
break;
//cin.clear;
//cin.ignore( numeric_limits<streamsize>::max(), 'n');
cout << "Try a number that can be expressed in 32 bits: ";
}
err = libusb_bulk_transfer(dev, 0x02, number.usb_data, sizeof(union int_thing), &transfer_size, 1000);
if (err)
error("Bulk OUT transfer failed!", err);
}
}
I'm trying to make a successful connection to a usb device, claim its interface and send a number to it. later on i will follow the exact protocols for transferring information to a mass storage device, but wright now i will be happy with establishing a connection.
the issue is that I'm getting "DEVICE NOT FOUND" all the time.
I am sure that I'm using the right credentials witch i picked up with
lsusb -v -d 0781:5575
not sure what I am doing wrong but I have a feeling it has something to do with using a VM? can anyone give me a tip?
by the way, I'm using Ubuntu on vmware workstation.
c++ ubuntu virtual-machine vmware libusb
asked Jan 1 at 7:50
JohnnyJohnny
33
I'm trying to implement the code from the following YouTube video by moellerIO:
https://www.youtube.com/results?search_query=libusb
#include <iostream>
#include <libusb-1.0/libusb.h>
using namespace std;
union int_thing {
unsigned char usb_data[4];
int32_t number;
};
void error(string s, int err) {
cout << s << " Error: " << libusb_error_name(err) << endl;
exit(err);
}
int main() {
int transfer_size;
int err;
libusb_device_handle* dev;
libusb_init(NULL);
dev = libusb_open_device_with_vid_pid(NULL, 0x0781 , 0x5575);
if (dev == NULL) {
cout << "DEVICE NOT FOUND, exiting." << endl;
return -1;
}
err = libusb_claim_interface(dev, 0);
if (err)
error("Cannot claim interface!", err);
err = libusb_set_interface_alt_setting(dev, 0, 0);
if (err)
error("Cannot set alternate settings!", err);
union int_thing number;
while (true) {
cout << "Send A number: ";
while (true) {
cin >> number.number;
if (cin.good())
break;
//cin.clear;
//cin.ignore( numeric_limits<streamsize>::max(), 'n');
cout << "Try a number that can be expressed in 32 bits: ";
}
err = libusb_bulk_transfer(dev, 0x02, number.usb_data, sizeof(union int_thing), &transfer_size, 1000);
if (err)
error("Bulk OUT transfer failed!", err);
}
}
I'm trying to make a successful connection to a usb device, claim its interface and send a number to it. later on i will follow the exact protocols for transferring information to a mass storage device, but wright now i will be happy with establishing a connection.
the issue is that I'm getting "DEVICE NOT FOUND" all the time.
I am sure that I'm using the right credentials witch i picked up with
lsusb -v -d 0781:5575
not sure what I am doing wrong but I have a feeling it has something to do with using a VM? can anyone give me a tip?
by the way, I'm using Ubuntu on vmware workstation.
c++ ubuntu virtual-machine vmware libusb
c++ ubuntu virtual-machine vmware libusb
asked Jan 1 at 7:50
JohnnyJohnny
33
asked Jan 1 at 7:50
JohnnyJohnny
33
edited Jan 1 at 8:11
Johnny
asked Jan 1 at 7:50
JohnnyJohnny
33
asked Jan 1 at 7:50
JohnnyJohnny
33
asked Jan 1 at 7:50
JohnnyJohnny
33
33
add a comment |
add a comment |
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