/* Given a Topfield protocol packet, this function will calculate the required
* CRC and send the packet out over a bulk pipe. */
ssize_t send_tf_packet(int fd, struct tf_packet *packet)
{
unsigned int pl = get_u16(&packet->length);
ssize_t byte_count = (pl + 1) & ~1;
trace(3, fprintf(stderr, "%s\n", __func__));
put_u16(&packet->crc, get_crc(packet));
print_packet(packet, "OUT>");
swap_out_packet(packet);
return usb_bulk_write(fd, 0x01, (__u8 *) packet, byte_count,
TF_PROTOCOL_TIMEOUT);
}
/* Given a Topfield protocol packet, this function will calculate the required
* CRC and send the packet out over a bulk pipe. */
int send_tf_packet(libusb_device_handle* fd, struct tf_packet *packet)
{
unsigned int pl = get_u16(&packet->length);
size_t byte_count = (pl + 1) & ~1;
put_u16(&packet->crc, get_crc(packet));
if (verbose>2) print_packet(packet, "OUT>");
swap_out_packet(packet);
if (fd==0) return -1;
return usb_bulk_write(fd, 0x01, (__u8 *) packet, byte_count,
default_timeout());
}
