UHCI_CTRL_EPT_MAX_SIZE
skip_len = UHCI_CTRL_EPT_MAX_SIZE; /* length to skip */
tw->tw_length -= UHCI_CTRL_EPT_MAX_SIZE;
UHCI_CTRL_EPT_MAX_SIZE, xx,
UHCI_CTRL_EPT_MAX_SIZE + tw->tw_bytes_xfered,
ctrl_buf_size = UHCI_CTRL_EPT_MAX_SIZE +
(uint8_t *)(tw->tw_buf + UHCI_CTRL_EPT_MAX_SIZE),