dev/usb/usb_generic.c

109 static int	ugen_get_iface_driver(struct usb_fifo *f, struct usb_gen_descriptor *ugd);
667 ugen_get_cdesc(struct usb_fifo *f, struct usb_gen_descriptor *ugd)
677 	if (ugd->ugd_data == NULL) {
681 	if ((ugd->ugd_config_index == USB_UNCONFIG_INDEX) ||
682 	    (ugd->ugd_config_index == udev->curr_config_index)) {
691 		    NULL, &cdesc, ugd->ugd_config_index)) {
702 	if (len > ugd->ugd_maxlen) {
703 		len = ugd->ugd_maxlen;
707 	ugd->ugd_actlen = len;
708 	ugd->ugd_offset = 0;
710 	error = copyout(cdesc, ugd->ugd_data, len);
723 ugen_get_sdesc(struct usb_fifo *f, struct usb_gen_descriptor *ugd)
733 	    size, ugd->ugd_lang_id, ugd->ugd_string_index)) {
740 		if (size > ugd->ugd_maxlen) {
741 			size = ugd->ugd_maxlen;
743 		ugd->ugd_actlen = size;
744 		ugd->ugd_offset = 0;
746 		error = copyout(ptr, ugd->ugd_data, size);
761 ugen_get_iface_driver(struct usb_fifo *f, struct usb_gen_descriptor *ugd)
774 	if ((ugd->ugd_data == NULL) || (ugd->ugd_maxlen == 0)) {
779 	iface = usbd_get_iface(udev, ugd->ugd_iface_index);
795 		maxlen = ugd->ugd_maxlen - 1;
801 		ugd->ugd_actlen = len + 1;
804 		error = copyout(buf, ugd->ugd_data, ugd->ugd_actlen);
807 		error = copyout("", ugd->ugd_data, 1);