Hi Alan and all Noticed conversation as below on earlier post. I would like to know if this code could be used in a similar case. Linux Mint 21.3 Using LibreCalc With USB RFID tag readers, (2 or more reader) most enter direct into open focus spreadsheet. However with no device number. Have same pid and vid. As the read from USB tag goes to the spreadsheet, can the device number eg 004 and the bus number eg 004 be appended to the data read into the spreadsheet. This would enable spreadsheet identify each reader and its location, to manipulate the tag reads by the location etc. If so, how do I go about setting up? Your comments and advice would be much appreciated. Charles Harris
