| WebNoteId: 27 Title: ECN#27 - Engineering Change Notice |  | ||||||||||||||||
Summary: ECN USB Manufactures Name Change | |||||||||||||||||
ECN #27 - Engineering Change NoticeTitle: USB Manufacture Name Change Date: March 22, 2024 Effects: All Delcom Products USB Devices Firmware Version: v67 3/22/2024 Abstract: In firmware version 67 a unique serial number was added to the USB configuration data. The USB unique serial number is a requirement of the USB protocol. The USB serial number feature required 4 additional data bytes of which were taken from the USB manufactures name. This required the USB manufactures name to be shortened by 4 bytes.
Consequence: If a application searches for the device by its manufacture and product string, the application may fail to find the device. We have seen this in some Linux applications. Solutions: 1) Search by VID/PID - The recommended way to search for the device is by its Vendor ID and Product ID. 2) Search for only the first 15 bytes for the manufactures name. 3) Search for both the old and new manufactures names. | |||||||||||||||||