int
usb_close(usb_dev_handle * udev)
{
struct usb_device *dev;
int err;
err = libusb20_dev_close((void *)udev);
if (err)
return (-1);
if (usb_backend != NULL) {
/*
* Enqueue USB device to backend queue so that it gets freed
* when the backend is re-scanned:
*/
libusb20_be_enqueue_device(usb_backend, (void *)udev);
} else {
/*
* The backend is gone. Free device data so that we
* don't start leaking memory!
*/
dev = usb_device(udev);
libusb20_dev_free((void *)udev);
LIST_DEL(usb_global_bus.devices, dev);
free(dev);
}
return (0);
}
static int
ugen20_init_backend(struct libusb20_backend *pbe)
{
struct ugen20_urd_state state;
struct libusb20_device *pdev;
memset(&state, 0, sizeof(state));
state.f = open("/dev/" USB_DEVICE_NAME, O_RDONLY);
if (state.f < 0)
return (LIBUSB20_ERROR_OTHER);
while (ugen20_readdir(&state) == 0) {
if ((state.src[0] != 'u') ||
(state.src[1] != 'g') ||
(state.src[2] != 'e') ||
(state.src[3] != 'n')) {
continue;
}
pdev = libusb20_dev_alloc();
if (pdev == NULL) {
continue;
}
if (ugen20_enumerate(pdev, state.src + 4)) {
libusb20_dev_free(pdev);
continue;
}
/* put the device on the backend list */
libusb20_be_enqueue_device(pbe, pdev);
}
close(state.f);
return (0); /* success */
}
