MCBA_MAX_TX_URBS
for (i = 0; i < MCBA_MAX_TX_URBS; i++) {
for (i = 0; i < MCBA_MAX_TX_URBS; i++) {
#define MCBA_CTX_FREE MCBA_MAX_TX_URBS
struct sk_buff *echo_skb[MCBA_MAX_TX_URBS];
struct mcba_usb_ctx tx_context[MCBA_MAX_TX_URBS];
netdev = alloc_candev(sizeof(struct mcba_priv), MCBA_MAX_TX_URBS);