What is USB iSereial param

Asked Jul 09 '23 at 10:46

Active Jul 09 '23 at 10:46

Viewed 36 times

I read topic about iSerial I test my devices to get iSerial for my case. For my JML camera I can get

$ lsusb -d 0bda:0567  -v | grep -i serial
Couldn't open device, some information will be missing
  iSerial                 2 202001010001

For my ELP-USB4K02AF camera I can get

$ lsusb -d 32e4:0415  -v | grep -i serial
Couldn't open device, some information will be missing
  iSerial                 3 01.00.00

iSerial = iSerialNumber ?
What is 2 or 3 in iSerial parameter? Index? Why sometimes 2, sometimes 3, sometimes other?
Is it typical story: the same cameras from one manufacturer have the same iSerial?

asked Jul 09 '23 at 10:46

`iSerial` begins with `i`, meaning it's an **i**ndex into the descriptor's string table. The specific order of strings in the table will vary from device to device. – Toby Speight Jul 09 '23 at 11:16

0 Answers0