USB_FS_BYTES_PER_HS_UFRAME
parm->hc_max_packet_size = USB_FS_BYTES_PER_HS_UFRAME;
parm->hc_max_packet_size = USB_FS_BYTES_PER_HS_UFRAME / 8;
while (data_len >= USB_FS_BYTES_PER_HS_UFRAME) {
data_len -= USB_FS_BYTES_PER_HS_UFRAME;
while (data_len >= USB_FS_BYTES_PER_HS_UFRAME) {
data_len -= USB_FS_BYTES_PER_HS_UFRAME;