int jtag_libusb_open(const uint16_t vids[], const uint16_t pids[],
struct jtag_libusb_device_handle **out)
{
int cnt, idx, errCode;
if (libusb_init(&jtag_libusb_context) < 0)
return -ENODEV;
libusb_set_debug(jtag_libusb_context, 3);
cnt = libusb_get_device_list(jtag_libusb_context, &devs);
for (idx = 0; idx < cnt; idx++) {
if (!jtag_libusb_match(devs[idx], vids, pids))
continue;
errCode = libusb_open(devs[idx], out);
/** Free the device list **/
libusb_free_device_list(devs, 1);
if (errCode < 0)
return errCode;
return 0;
}
return -ENODEV;
}
int jtag_libusb_open(const uint16_t vids[], const uint16_t pids[],
const char *serial,
struct jtag_libusb_device_handle **out)
{
int cnt, idx, errCode;
int retval = -ENODEV;
struct jtag_libusb_device_handle *libusb_handle = NULL;
if (libusb_init(&jtag_libusb_context) < 0)
return -ENODEV;
cnt = libusb_get_device_list(jtag_libusb_context, &devs);
for (idx = 0; idx < cnt; idx++) {
struct libusb_device_descriptor dev_desc;
if (libusb_get_device_descriptor(devs[idx], &dev_desc) != 0)
continue;
if (!jtag_libusb_match(&dev_desc, vids, pids))
continue;
errCode = libusb_open(devs[idx], &libusb_handle);
if (errCode) {
LOG_ERROR("libusb_open() failed with %s",
libusb_error_name(errCode));
continue;
}
/* Device must be open to use libusb_get_string_descriptor_ascii. */
if (serial != NULL &&
!string_descriptor_equal(libusb_handle, dev_desc.iSerialNumber, serial)) {
libusb_close(libusb_handle);
continue;
}
/* Success. */
*out = libusb_handle;
retval = 0;
break;
}
if (cnt >= 0)
libusb_free_device_list(devs, 1);
return retval;
}
int jtag_libusb_open(const uint16_t vids[], const uint16_t pids[],
struct jtag_libusb_device_handle **out)
{
usb_init();
usb_find_busses();
usb_find_devices();
struct usb_bus *busses = usb_get_busses();
for (struct usb_bus *bus = busses; bus; bus = bus->next) {
for (struct usb_device *dev = bus->devices;
dev; dev = dev->next) {
if (!jtag_libusb_match(dev, vids, pids))
continue;
*out = usb_open(dev);
if (NULL == *out)
return -errno;
return 0;
}
}
return -ENODEV;
}
int jtag_libusb_open(const uint16_t vids[], const uint16_t pids[],
const char *serial,
struct jtag_libusb_device_handle **out)
{
int retval = -ENODEV;
struct jtag_libusb_device_handle *libusb_handle;
usb_init();
usb_find_busses();
usb_find_devices();
struct usb_bus *busses = usb_get_busses();
for (struct usb_bus *bus = busses; bus; bus = bus->next) {
for (struct usb_device *dev = bus->devices;
dev; dev = dev->next) {
if (!jtag_libusb_match(dev, vids, pids))
continue;
libusb_handle = usb_open(dev);
if (NULL == libusb_handle) {
retval = -errno;
continue;
}
/* Device must be open to use libusb_get_string_descriptor_ascii. */
if (serial != NULL &&
!string_descriptor_equal(libusb_handle, dev->descriptor.iSerialNumber, serial)) {
usb_close(libusb_handle);
continue;
}
*out = libusb_handle;
retval = 0;
break;
}
}
return retval;
}
