SUDAVIRQ
val = IN0BAVIRQ | OUT0DAVIRQ | SUDAVIRQ;
if (epirq & SUDAVIRQ) {
spi_wr8(udc, MAX3420_REG_EPIRQ, SUDAVIRQ);
spi_wr8(udc, MAX3420_REG_EPIEN, SUDAVIRQ | IN0BAVIRQ