[ Version ( since = "0.2.5" ) ]
public uint8 get_custom_index (uint8 class_id, uint8 subclass_id, uint8 protocol_id) throws Error
Gets the string index from the vendor class interface descriptor.
this |
a Device |
class_id |
a device class, e.g. 0xff for VENDOR |
subclass_id |
a device subclass |
protocol_id |
a protocol number |
a non-zero index, or 0x00 for failure |