« previous next »
Pages: [1]

Author Topic: do HID feature requests send VID PID?  (Read 9354 times)

ulao

  • Frequent Contributor
  • ****
  • Posts: 172
do HID feature requests send VID PID?
« on: July 03, 2017, 06:10:18 pm »
I have 4 identical devices that differ only by PID. I run a 1 second loop for get feature requests and they pick up each other. I was under the impression that each request sends the address (VID,PID) so that is could be verified. Is this not true?
Logged

Jan Axelson

  • Administrator
  • Frequent Contributor
  • *****
  • Posts: 3033
    • Lakeview Research
Re: do HID feature requests send VID PID?
« Reply #1 on: July 03, 2017, 08:33:08 pm »
The address and endpoint fields specify the source or destination of data. See 8.3.2 and its subsections in the USB 2.0 spec.
« Last Edit: July 04, 2017, 10:38:01 am by Jan Axelson »
Logged
Pages: [1]
« previous next »