void
usb_set_config_test(uint16_t vid, uint16_t pid, uint32_t duration)
{
struct libusb20_device *pdev;
struct LIBUSB20_DEVICE_DESC_DECODED *ddesc;
int x;
int error;
int failed;
int exp;
pdev = find_usb_device(vid, pid);
if (pdev == NULL) {
printf("USB device not found\n");
return;
}
error = libusb20_dev_open(pdev, 0);
if (error) {
printf("Could not open USB device\n");
libusb20_dev_free(pdev);
return;
}
failed = 0;
printf("Starting set config test for "
"VID=0x%04x PID=0x%04x\n", vid, pid);
for (x = 255; x > -1; x--) {
error = libusb20_dev_set_config_index(pdev, x);
if (error == 0) {
if (x == 255) {
printf("Unconfiguring USB device "
"was successful\n");
} else {
printf("Setting configuration %d "
"was successful\n", x);
}
} else {
failed++;
}
}
ddesc = libusb20_dev_get_device_desc(pdev);
if (ddesc != NULL)
exp = ddesc->bNumConfigurations + 1;
else
exp = 1;
printf("\n\n"
"Set configuration summary\n"
"Valid count: %d/%d %s\n"
"Failed count: %d\n",
256 - failed, exp,
(exp == (256 - failed)) ? "(expected)" : "(unexpected)",
failed);
libusb20_dev_free(pdev);
}
usb_dev_handle *
usb_open(struct usb_device *dev)
{
int err;
err = libusb20_dev_open(dev->dev, 16 * 2);
if (err == LIBUSB20_ERROR_BUSY) {
/*
* Workaround buggy USB applications which open the USB
* device multiple times:
*/
return (dev->dev);
}
if (err)
return (NULL);
/*
* Dequeue USB device from backend queue so that it does not get
* freed when the backend is re-scanned:
*/
libusb20_be_dequeue_device(usb_backend, dev->dev);
return (dev->dev);
}
static void
exec_host_modem_test(struct modem *p, uint16_t vid, uint16_t pid)
{
struct libusb20_device *pdev;
uint8_t ntest = 0;
uint8_t x;
uint8_t in_ep;
uint8_t out_ep;
uint8_t iface;
int error;
pdev = find_usb_device(vid, pid);
if (pdev == NULL) {
printf("USB device not found\n");
return;
}
if (p->use_vendor_specific)
find_usb_endpoints(pdev, 255, 255, 255, 0, &iface, &in_ep, &out_ep, 0);
else
find_usb_endpoints(pdev, 2, 2, 1, 0, &iface, &in_ep, &out_ep, 1);
if ((in_ep == 0) || (out_ep == 0)) {
printf("Could not find USB endpoints\n");
libusb20_dev_free(pdev);
return;
}
printf("Attaching to: %s @ iface %d\n",
libusb20_dev_get_desc(pdev), iface);
if (libusb20_dev_open(pdev, 2)) {
printf("Could not open USB device\n");
libusb20_dev_free(pdev);
return;
}
if (libusb20_dev_detach_kernel_driver(pdev, iface)) {
printf("WARNING: Could not detach kernel driver\n");
}
p->xfer_in = libusb20_tr_get_pointer(pdev, 0);
error = libusb20_tr_open(p->xfer_in, 65536 / 4, 1, in_ep);
if (error) {
printf("Could not open USB endpoint %d\n", in_ep);
libusb20_dev_free(pdev);
return;
}
p->xfer_out = libusb20_tr_get_pointer(pdev, 1);
error = libusb20_tr_open(p->xfer_out, 65536 / 4, 1, out_ep);
if (error) {
printf("Could not open USB endpoint %d\n", out_ep);
libusb20_dev_free(pdev);
return;
}
p->usb_dev = pdev;
p->usb_iface = iface;
p->errors = 0;
if (p->control_ep_test)
ntest += 7;
if (p->data_stress_test)
ntest += 1;
if (ntest == 0) {
printf("No tests selected\n");
} else {
if (p->control_ep_test) {
for (x = 1; x != 8; x++) {
usb_modem_control_ep_test(p,
(p->duration + ntest - 1) / ntest, x);
}
}
if (p->data_stress_test) {
usb_modem_data_stress_test(p,
(p->duration + ntest - 1) / ntest);
}
}
printf("\nDone\n");
libusb20_dev_free(pdev);
}
int
usb_find_devices(void)
{
struct libusb20_device *pdev;
struct usb_device *udev;
struct LIBUSB20_DEVICE_DESC_DECODED *ddesc;
int devnum;
int err;
/* cleanup after last device search */
/* close all opened devices, if any */
while ((pdev = libusb20_be_device_foreach(usb_backend, NULL))) {
udev = pdev->privLuData;
libusb20_be_dequeue_device(usb_backend, pdev);
libusb20_dev_free(pdev);
if (udev != NULL) {
LIST_DEL(usb_global_bus.devices, udev);
free(udev);
}
}
/* free old USB backend, if any */
libusb20_be_free(usb_backend);
/* do a new backend device search */
usb_backend = libusb20_be_alloc_default();
if (usb_backend == NULL) {
return (-1);
}
/* iterate all devices */
devnum = 1;
pdev = NULL;
while ((pdev = libusb20_be_device_foreach(usb_backend, pdev))) {
udev = malloc(sizeof(*udev));
if (udev == NULL)
break;
memset(udev, 0, sizeof(*udev));
udev->bus = &usb_global_bus;
snprintf(udev->filename, sizeof(udev->filename),
"/dev/ugen%u.%u",
libusb20_dev_get_bus_number(pdev),
libusb20_dev_get_address(pdev));
ddesc = libusb20_dev_get_device_desc(pdev);
udev->descriptor.bLength = sizeof(udev->descriptor);
udev->descriptor.bDescriptorType = ddesc->bDescriptorType;
udev->descriptor.bcdUSB = ddesc->bcdUSB;
udev->descriptor.bDeviceClass = ddesc->bDeviceClass;
udev->descriptor.bDeviceSubClass = ddesc->bDeviceSubClass;
udev->descriptor.bDeviceProtocol = ddesc->bDeviceProtocol;
udev->descriptor.bMaxPacketSize0 = ddesc->bMaxPacketSize0;
udev->descriptor.idVendor = ddesc->idVendor;
udev->descriptor.idProduct = ddesc->idProduct;
udev->descriptor.bcdDevice = ddesc->bcdDevice;
udev->descriptor.iManufacturer = ddesc->iManufacturer;
udev->descriptor.iProduct = ddesc->iProduct;
udev->descriptor.iSerialNumber = ddesc->iSerialNumber;
udev->descriptor.bNumConfigurations =
ddesc->bNumConfigurations;
if (udev->descriptor.bNumConfigurations > USB_MAXCONFIG) {
/* truncate number of configurations */
udev->descriptor.bNumConfigurations = USB_MAXCONFIG;
}
udev->devnum = devnum++;
/* link together the two structures */
udev->dev = pdev;
pdev->privLuData = udev;
err = libusb20_dev_open(pdev, 0);
if (err == 0) {
/* XXX get all config descriptors by default */
usb_fetch_and_parse_descriptors((void *)pdev);
libusb20_dev_close(pdev);
}
LIST_ADD(usb_global_bus.devices, udev);
}
return (devnum - 1); /* success */
}
static void
doit(struct libusb20_device *dev)
{
int rv;
if (do_request)
printf("doit(): bmRequestType 0x%02x, bRequest 0x%02x, wValue 0x%04x, wIndex 0x%04x, wLength 0x%04x\n",
setup.bmRequestType,
setup.bRequest,
setup.wValue,
setup.wIndex,
setup.wLength);
/*
* Open the device, allocating memory for two possible (bulk or
* interrupt) transfers.
*
* If only control transfers are intended (via
* libusb20_dev_request_sync()), transfer_max can be given as 0.
*/
if ((rv = libusb20_dev_open(dev, 1)) != 0)
{
fprintf(stderr, "libusb20_dev_open: %s\n", libusb20_strerror(rv));
return;
}
/*
* If the device has more than one configuration, select the desired
* one here.
*/
if ((rv = libusb20_dev_set_config_index(dev, 0)) != 0)
{
fprintf(stderr, "libusb20_dev_set_config_index: %s\n", libusb20_strerror(rv));
return;
}
uint8_t *data = 0;
uint16_t actlen;
if ((setup.bmRequestType & 0x80) != 0)
{
/* this is an IN request, allocate a buffer */
data = malloc(setup.wLength);
if (data == 0)
{
fprintf(stderr,
"Out of memory allocating %u bytes of reply buffer\n",
setup.wLength);
return;
}
}
else
data = out_buf;
if (do_request)
{
if ((rv = libusb20_dev_request_sync(dev, &setup, data,
&actlen,
TIMEOUT,
0 /* flags */)) != 0)
{
fprintf(stderr,
"libusb20_dev_request_sync: %s\n", libusb20_strerror(rv));
}
printf("sent %d bytes\n", actlen);
if ((setup.bmRequestType & 0x80) != 0)
{
print_formatted(data, (uint32_t)setup.wLength);
free(data);
}
}
if (intr_ep != 0)
{
/*
* One transfer has been requested in libusb20_dev_open() above;
* obtain the corresponding transfer struct pointer.
*/
struct libusb20_transfer *xfr_intr = libusb20_tr_get_pointer(dev, 0);
if (xfr_intr == NULL)
{
fprintf(stderr, "libusb20_tr_get_pointer: %s\n", libusb20_strerror(rv));
return;
}
/*
* Open the interrupt transfer.
*/
if ((rv = libusb20_tr_open(xfr_intr, 0, 1, intr_ep)) != 0)
{
fprintf(stderr, "libusb20_tr_open: %s\n", libusb20_strerror(rv));
return;
}
uint8_t in_buf[BUFLEN];
uint32_t rlen;
if ((rv = libusb20_tr_bulk_intr_sync(xfr_intr, in_buf, BUFLEN, &rlen, TIMEOUT))
!= 0)
{
fprintf(stderr, "libusb20_tr_bulk_intr_sync: %s\n", libusb20_strerror(rv));
}
printf("received %d bytes\n", rlen);
if (rlen > 0)
print_formatted(in_buf, rlen);
libusb20_tr_close(xfr_intr);
}
libusb20_dev_close(dev);
}
static void
doit(struct libusb20_device *dev)
{
int rv;
/*
* Open the device, allocating memory for two possible (bulk or
* interrupt) transfers.
*
* If only control transfers are intended (via
* libusb20_dev_request_sync()), transfer_max can be given as 0.
*/
if ((rv = libusb20_dev_open(dev, 2)) != 0)
{
fprintf(stderr, "libusb20_dev_open: %s\n", libusb20_strerror(rv));
return;
}
/*
* If the device has more than one configuration, select the desired
* one here.
*/
if ((rv = libusb20_dev_set_config_index(dev, 0)) != 0)
{
fprintf(stderr, "libusb20_dev_set_config_index: %s\n", libusb20_strerror(rv));
return;
}
/*
* Two transfers have been requested in libusb20_dev_open() above;
* obtain the corresponding transfer struct pointers.
*/
struct libusb20_transfer *xfr_out = libusb20_tr_get_pointer(dev, 0);
struct libusb20_transfer *xfr_in = libusb20_tr_get_pointer(dev, 1);
if (xfr_in == NULL || xfr_out == NULL)
{
fprintf(stderr, "libusb20_tr_get_pointer: %s\n", libusb20_strerror(rv));
return;
}
/*
* Open both transfers, the "out" one for the write endpoint, the
* "in" one for the read endpoint (ep | 0x80).
*/
if ((rv = libusb20_tr_open(xfr_out, 0, 1, out_ep)) != 0)
{
fprintf(stderr, "libusb20_tr_open: %s\n", libusb20_strerror(rv));
return;
}
if ((rv = libusb20_tr_open(xfr_in, 0, 1, in_ep)) != 0)
{
fprintf(stderr, "libusb20_tr_open: %s\n", libusb20_strerror(rv));
return;
}
uint8_t in_buf[BUFLEN];
uint32_t rlen;
if (out_len > 0)
{
if ((rv = libusb20_tr_bulk_intr_sync(xfr_out, out_buf, out_len, &rlen, TIMEOUT))
!= 0)
{
fprintf(stderr, "libusb20_tr_bulk_intr_sync (OUT): %s\n", libusb20_strerror(rv));
}
printf("sent %d bytes\n", rlen);
}
if ((rv = libusb20_tr_bulk_intr_sync(xfr_in, in_buf, BUFLEN, &rlen, TIMEOUT))
!= 0)
{
fprintf(stderr, "libusb20_tr_bulk_intr_sync: %s\n", libusb20_strerror(rv));
}
printf("received %d bytes\n", rlen);
if (rlen > 0)
print_formatted(in_buf, rlen);
libusb20_tr_close(xfr_out);
libusb20_tr_close(xfr_in);
libusb20_dev_close(dev);
}
void
usb_control_ep_error_test(uint16_t vid, uint16_t pid)
{
struct LIBUSB20_CONTROL_SETUP_DECODED req;
struct libusb20_device *pdev;
uint8_t buffer[256];
int error;
int fail = 0;
int bus;
int dev;
int cfg;
pdev = find_usb_device(vid, pid);
if (pdev == NULL) {
printf("USB device not found\n");
return;
}
error = libusb20_dev_open(pdev, 0);
if (error) {
printf("Could not open USB device\n");
libusb20_dev_free(pdev);
return;
}
bus = libusb20_dev_get_bus_number(pdev);
dev = libusb20_dev_get_address(pdev);
for (cfg = 0; cfg != 255; cfg++) {
LIBUSB20_INIT(LIBUSB20_CONTROL_SETUP, &req);
req.bmRequestType = 0x80; /* read */
req.bRequest = 0x06; /* descriptor */
req.wValue = 0x0200 | cfg; /* config descriptor */
req.wIndex = 0;
req.wLength = 255;
printf("Test #%d.1/3 ...\n", cfg);
set_ctrl_ep_fail(-1,-1,0,0);
error = libusb20_dev_request_sync(pdev, &req, buffer,
NULL, 1000, 0);
if (error != 0) {
printf("Last configuration index is: %d\n", cfg - 1);
break;
}
printf("Test #%d.2/3 ...\n", cfg);
set_ctrl_ep_fail(bus,dev,1,1);
error = libusb20_dev_request_sync(pdev, &req, buffer,
NULL, 1000, 0);
set_ctrl_ep_fail(-1,-1,0,0);
error = libusb20_dev_request_sync(pdev, &req, buffer,
NULL, 1000, 0);
if (error != 0) {
printf("Cannot fetch descriptor (unexpected)\n");
fail++;
}
printf("Test #%d.3/3 ...\n", cfg);
set_ctrl_ep_fail(bus,dev,0,1);
error = libusb20_dev_request_sync(pdev, &req, buffer,
NULL, 1000, 0);
set_ctrl_ep_fail(-1,-1,0,0);
error = libusb20_dev_request_sync(pdev, &req, buffer,
NULL, 1000, 0);
if (error != 0) {
printf("Cannot fetch descriptor (unexpected)\n");
fail++;
}
}
libusb20_dev_close(pdev);
libusb20_dev_free(pdev);
printf("Test completed detecting %d failures\nDone\n\n", fail);
}
void
usb_set_alt_interface_test(uint16_t vid, uint16_t pid)
{
struct libusb20_device *pdev;
struct libusb20_config *config;
int iter;
int error;
int errcnt;
int n;
int m;
pdev = find_usb_device(vid, pid);
if (pdev == NULL) {
printf("USB device not found\n");
return;
}
printf("Starting set alternate setting test "
"for VID=0x%04x PID=0x%04x\n", vid, pid);
config = libusb20_dev_alloc_config(pdev,
libusb20_dev_get_config_index(pdev));
if (config == NULL) {
printf("Could not get configuration descriptor\n");
libusb20_dev_free(pdev);
return;
}
iter = 0;
errcnt = 0;
for (n = 0; n != config->num_interface; n++) {
/* detach kernel driver */
libusb20_dev_detach_kernel_driver(pdev, n);
error = libusb20_dev_open(pdev, 0);
if (error)
printf("ERROR could not open device\n");
/* Try the alternate settings */
for (m = 0; m != config->interface[n].num_altsetting; m++) {
iter++;
if (libusb20_dev_set_alt_index(pdev, n, m + 1)) {
printf("ERROR on interface %d alt %d\n", n, m + 1);
errcnt++;
}
}
/* Restore to default */
iter++;
if (libusb20_dev_set_alt_index(pdev, n, 0)) {
printf("ERROR on interface %d alt %d\n", n, 0);
errcnt++;
}
libusb20_dev_close(pdev);
}
libusb20_dev_free(pdev);
printf("\n"
"Test summary\n"
"============\n"
"Interfaces tested: %d\n"
"Errors: %d\n", iter, errcnt);
}
void
usb_set_and_clear_stall_test(uint16_t vid, uint16_t pid)
{
struct libusb20_device *pdev;
struct libusb20_transfer *pxfer;
int iter;
int error;
int errcnt;
int ep;
pdev = find_usb_device(vid, pid);
if (pdev == NULL) {
printf("USB device not found\n");
return;
}
error = libusb20_dev_open(pdev, 1);
if (error) {
printf("Could not open USB device\n");
libusb20_dev_free(pdev);
return;
}
printf("Starting set and clear stall test "
"for VID=0x%04x PID=0x%04x\n", vid, pid);
iter = 0;
errcnt = 0;
for (ep = 2; ep != 32; ep++) {
struct LIBUSB20_CONTROL_SETUP_DECODED setup_set_stall;
struct LIBUSB20_CONTROL_SETUP_DECODED setup_get_status;
uint8_t epno = ((ep / 2) | ((ep & 1) << 7));
uint8_t buf[1];
LIBUSB20_INIT(LIBUSB20_CONTROL_SETUP, &setup_set_stall);
setup_set_stall.bmRequestType = 0x02; /* write endpoint */
setup_set_stall.bRequest = 0x03; /* set feature */
setup_set_stall.wValue = 0x00; /* UF_ENDPOINT_HALT */
setup_set_stall.wIndex = epno;
setup_set_stall.wLength = 0;
LIBUSB20_INIT(LIBUSB20_CONTROL_SETUP, &setup_get_status);
setup_get_status.bmRequestType = 0x82; /* read endpoint */
setup_get_status.bRequest = 0x00; /* get status */
setup_get_status.wValue = 0x00;
setup_get_status.wIndex = epno;
setup_get_status.wLength = 1;
if (libusb20_dev_check_connected(pdev) != 0) {
printf("Device disconnected\n");
break;
}
pxfer = libusb20_tr_get_pointer(pdev, 0);
error = libusb20_tr_open(pxfer, 1, 1, epno);
if (error != 0) {
printf("Endpoint 0x%02x does not exist "
"in current setting. (%s, ignored)\n",
epno, libusb20_strerror(error));
continue;
}
printf("Stalling endpoint 0x%02x\n", epno);
/* set stall */
error = libusb20_dev_request_sync(pdev,
&setup_set_stall, NULL, NULL, 250, 0);
if (error != 0) {
printf("Endpoint 0x%02x does not allow "
"setting of stall. (%s)\n",
epno, libusb20_strerror(error));
errcnt++;
}
/* get EP status */
buf[0] = 0;
error = libusb20_dev_request_sync(pdev,
&setup_get_status, buf, NULL, 250, 0);
if (error != 0) {
printf("Endpoint 0x%02x does not allow "
"reading status. (%s)\n",
epno, libusb20_strerror(error));
errcnt++;
} else {
if (!(buf[0] & 1)) {
printf("Endpoint 0x%02x status is "
"not set to stalled\n", epno);
errcnt++;
}
}
buf[0] = 0;
error = libusb20_tr_bulk_intr_sync(pxfer, buf, 1, NULL, 250);
if (error != LIBUSB20_TRANSFER_STALL) {
printf("Endpoint 0x%02x does not appear to "
"have stalled. Missing stall PID!\n", epno);
errcnt++;
}
printf("Unstalling endpoint 0x%02x\n", epno);
libusb20_tr_clear_stall_sync(pxfer);
/* get EP status */
buf[0] = 0;
error = libusb20_dev_request_sync(pdev,
&setup_get_status, buf, NULL, 250, 0);
if (error != 0) {
printf("Endpoint 0x%02x does not allow "
"reading status. (%s)\n",
epno, libusb20_strerror(error));
errcnt++;
} else {
if (buf[0] & 1) {
printf("Endpoint 0x%02x status is "
"still stalled\n", epno);
errcnt++;
}
}
libusb20_tr_close(pxfer);
iter++;
}
libusb20_dev_free(pdev);
printf("\n"
"Test summary\n"
"============\n"
"Endpoints tested: %d\n"
"Errors: %d\n", iter, errcnt);
}
void
usb_suspend_resume_test(uint16_t vid, uint16_t pid, uint32_t duration)
{
struct timeval sub_tv;
struct timeval ref_tv;
struct timeval res_tv;
struct libusb20_device *pdev;
time_t last_sec;
int iter;
int error;
int ptimo;
int errcnt;
int power_old;
ptimo = 1; /* second(s) */
error = sysctlbyname("hw.usb.power_timeout", NULL, NULL,
&ptimo, sizeof(ptimo));
if (error != 0) {
printf("WARNING: Could not set power "
"timeout to 1 (error=%d) \n", errno);
}
pdev = find_usb_device(vid, pid);
if (pdev == NULL) {
printf("USB device not found\n");
return;
}
error = libusb20_dev_open(pdev, 0);
if (error) {
printf("Could not open USB device\n");
libusb20_dev_free(pdev);
return;
}
power_old = libusb20_dev_get_power_mode(pdev);
printf("Starting suspend and resume "
"test for VID=0x%04x PID=0x%04x\n", vid, pid);
iter = 0;
errcnt = 0;
gettimeofday(&ref_tv, 0);
last_sec = ref_tv.tv_sec;
while (1) {
if (libusb20_dev_check_connected(pdev) != 0) {
printf("Device disconnected\n");
break;
}
gettimeofday(&sub_tv, 0);
if (last_sec != sub_tv.tv_sec) {
printf("STATUS: ID=%u, ERR=%u\n",
(int)iter, (int)errcnt);
fflush(stdout);
last_sec = sub_tv.tv_sec;
}
timersub(&sub_tv, &ref_tv, &res_tv);
if ((res_tv.tv_sec < 0) || (res_tv.tv_sec >= (int)duration))
break;
error = libusb20_dev_set_power_mode(pdev, (iter & 1) ?
LIBUSB20_POWER_ON : LIBUSB20_POWER_SAVE);
if (error)
errcnt++;
/* wait before switching power mode */
usleep(4100000 +
(((uint32_t)usb_ts_rand_noise()) % 2000000U));
iter++;
}
/* restore default power mode */
libusb20_dev_set_power_mode(pdev, power_old);
libusb20_dev_free(pdev);
}
void
usb_port_reset_test(uint16_t vid, uint16_t pid, uint32_t duration)
{
struct timeval sub_tv;
struct timeval ref_tv;
struct timeval res_tv;
struct libusb20_device *pdev;
int error;
int iter;
int errcnt;
time_t last_sec;
/* sysctl() - no set config */
pdev = find_usb_device(vid, pid);
if (pdev == NULL) {
printf("USB device not found\n");
return;
}
error = libusb20_dev_open(pdev, 0);
if (error) {
libusb20_dev_free(pdev);
printf("Could not open USB device\n");
return;
}
iter = 0;
errcnt = 0;
gettimeofday(&ref_tv, 0);
last_sec = ref_tv.tv_sec;
while (1) {
gettimeofday(&sub_tv, 0);
if (last_sec != sub_tv.tv_sec) {
printf("STATUS: ID=%u, ERR=%u\n",
(int)iter, (int)errcnt);
fflush(stdout);
last_sec = sub_tv.tv_sec;
}
timersub(&sub_tv, &ref_tv, &res_tv);
if ((res_tv.tv_sec < 0) || (res_tv.tv_sec >= (int)duration))
break;
if (libusb20_dev_reset(pdev)) {
errcnt++;
usleep(50000);
}
if (libusb20_dev_check_connected(pdev) != 0) {
printf("Device disconnected\n");
break;
}
iter++;
}
libusb20_dev_reset(pdev);
libusb20_dev_free(pdev);
}
void
usb_get_string_desc_test(uint16_t vid, uint16_t pid)
{
struct libusb20_device *pdev;
uint32_t x;
uint32_t y;
uint32_t valid;
uint8_t *buf;
int error;
pdev = find_usb_device(vid, pid);
if (pdev == NULL) {
printf("USB device not found\n");
return;
}
error = libusb20_dev_open(pdev, 0);
if (error) {
printf("Could not open USB device\n");
libusb20_dev_free(pdev);
return;
}
buf = malloc(256);
if (buf == NULL) {
printf("Cannot allocate memory\n");
libusb20_dev_free(pdev);
return;
}
valid = 0;
printf("Starting string descriptor test for "
"VID=0x%04x PID=0x%04x\n", vid, pid);
for (x = 0; x != 256; x++) {
if (libusb20_dev_check_connected(pdev) != 0) {
printf("Device disconnected\n");
break;
}
printf("%d .. ", (int)x);
fflush(stdout);
error = libusb20_dev_req_string_simple_sync(pdev, x, buf, 255);
if (error == 0) {
printf("\nINDEX=%d, STRING='%s' (Default language)\n", (int)x, buf);
fflush(stdout);
} else {
continue;
}
valid = 0;
for (y = 0; y != 65536; y++) {
if (libusb20_dev_check_connected(pdev) != 0) {
printf("Device disconnected\n");
break;
}
error = libusb20_dev_req_string_sync(pdev, x, y, buf, 256);
if (error == 0)
valid++;
}
printf("String at INDEX=%d responds to %d "
"languages\n", (int)x, (int)valid);
}
printf("\nDone\n");
free(buf);
libusb20_dev_free(pdev);
}
