USB_TransactionTracking (SWI&55397) — Track transactions.
| R0 | Pointer to endpoint. |
| R1 | Pointer to tracking routine |
| R2 | Argument to tracking routine |
| R0 | preserved |
| R1 | Error code Table A.1 |
| R2 | Preserved |
regs->r[1]=usb_transaction_tracking( (struct endpoint_structur *) regs->r[0], (void (*)(struct transaction_basic_structur *, void *, int)) regs->r[1], (void *) regs->r[2]);
None.