usb_cdc_dmm_desc
if (hdr.usb_cdc_dmm_desc)
maxcom = le16_to_cpu(hdr.usb_cdc_dmm_desc->wMaxCommand);
if (elength < sizeof(struct usb_cdc_dmm_desc))
hdr->usb_cdc_dmm_desc =
(struct usb_cdc_dmm_desc *)buffer;
struct usb_cdc_dmm_desc *usb_cdc_dmm_desc;