50 int printifc(usb_ifc_info *info)  in printifc()  argument
53            info->dev_class, info->dev_subclass, info->dev_protocol,  in printifc()
54            info->dev_vendor, info->dev_product);  in printifc()
56            info->ifc_class, info->ifc_subclass, info->ifc_protocol,  in printifc()
57            info->has_bulk_in ? " in" : "",  in printifc()
58            info->has_bulk_out ? " out" : "");  in printifc()
62 int match_null(usb_ifc_info *info)  in match_null()  argument
64     if(info->dev_vendor != 0x18d1) return -1;  in match_null()
65     if(info->ifc_class != 0xff) return -1;  in match_null()
66     if(info->ifc_subclass != 0xfe) return -1;  in match_null()
67     if(info->ifc_protocol != 0x01) return -1;  in match_null()
71 int match_zero(usb_ifc_info *info)  in match_zero()  argument
73     if(info->dev_vendor != 0x18d1) return -1;  in match_zero()
74     if(info->ifc_class != 0xff) return -1;  in match_zero()
75     if(info->ifc_subclass != 0xfe) return -1;  in match_zero()
76     if(info->ifc_protocol != 0x02) return -1;  in match_zero()
80 int match_loop(usb_ifc_info *info)  in match_loop()  argument
82     if(info->dev_vendor != 0x18d1) return -1;  in match_loop()
83     if(info->ifc_class != 0xff) return -1;  in match_loop()
84     if(info->ifc_subclass != 0xfe) return -1;  in match_loop()
85     if(info->ifc_protocol != 0x03) return -1;  in match_loop()