id32_lookup
if ((cmd = id32_lookup((uint32_t)cdesc->context)) != NULL) {
extern void *id32_lookup(uint32_t);
#define EHCI_LOOKUP_ID(x) id32_lookup((x))
#define OHCI_LOOKUP_ID(x) id32_lookup((x))
#define SOCAL_ID_LOOKUP(x) id32_lookup((x))