static void cb_xfer(struct libusb_transfer *xfer)
{
int r;
uint8_t *tmp;
if (xfer->status != LIBUSB_TRANSFER_COMPLETED) {
if(xfer->status != LIBUSB_TRANSFER_CANCELLED)
rx_xfer_status(xfer->status);
libusb_free_transfer(xfer);
rx_xfer = NULL;
return;
}
while (usb_really_full) {
fprintf(stderr, "uh oh, full_usb_buf not emptied\n");
}
tmp = full_usb_buf;
full_usb_buf = empty_usb_buf;
empty_usb_buf = tmp;
usb_really_full = 1;
rx_xfer->buffer = empty_usb_buf;
while (usb_retry) {
r = libusb_submit_transfer(rx_xfer);
if (r < 0)
fprintf(stderr, "rx_xfer submission from callback: %d\n", r);
else
break;
}
}
static void cb_xfer(struct libusb_transfer *xfer)
{
int r;
uint8_t *tmp;
ubertooth_t* ut = (ubertooth_t*)xfer->user_data;
if (xfer->status != LIBUSB_TRANSFER_COMPLETED) {
if(xfer->status == LIBUSB_TRANSFER_TIMED_OUT) {
r = libusb_submit_transfer(ut->rx_xfer);
if (r < 0)
fprintf(stderr, "Failed to submit USB transfer (%d)\n", r);
return;
}
if(xfer->status != LIBUSB_TRANSFER_CANCELLED)
rx_xfer_status(xfer->status);
libusb_free_transfer(xfer);
ut->rx_xfer = NULL;
return;
}
if(ut->usb_really_full) {
/* This should never happen, but we'd prefer to error and exit
* than to clobber existing data
*/
fprintf(stderr, "uh oh, full_usb_buf not emptied\n");
ut->stop_ubertooth = 1;
}
if(ut->stop_ubertooth)
return;
tmp = ut->full_usb_buf;
ut->full_usb_buf = ut->empty_usb_buf;
ut->empty_usb_buf = tmp;
ut->usb_really_full = 1;
ut->rx_xfer->buffer = ut->empty_usb_buf;
r = libusb_submit_transfer(ut->rx_xfer);
if (r < 0)
fprintf(stderr, "Failed to submit USB transfer (%d)\n", r);
}
