Dec 8th, 2025, 10:12am
Home Home  Search Search  Members Members  Login Login  Register Register
Welcome, Guest. Please Login or Register.
FabulaTech Forum USB Solutions USB Monitor Pro (Moderators: Andrew, Sergey_Jarovski, Tim_GaliullinFT) USBMonitor does not display data No topic | Next topic
Pages: 1  Reply Reply  Notify of replies Notify of replies  Print Print
   Author  Topic: USBMonitor does not display data  (Read 5993 times)
VxerLee
FabulaTech Forum Newbie
*

View Profile         
Posts: 1
USBMonitor does not display data
on: Feb 24th, 2021, 6:10am 		Quote Quote  Modify Modify
Hi！  
https://imgur.com/2Cdb3Pi  
The USB Monitor clearly shows that the Transfer Size has 4096 bytes, but there is no data displayed on the data display interface. What's going on here?
IP Logged
Sergey_Jarovski
FabulaTech Forum Moderator
FabulaTech Forum God
*****

View Profile   WWW         
Gender: male Posts: 559
Re: USBMonitor does not display data
Reply #1 on: Feb 24th, 2021, 9:58am 		Quote Quote  Modify Modify
Hi,
 
This is an in-urb (a request to read from a device), the data is in the response urb from the device (marked as OUT in usbmon). In this case, the response urb returned with an error, so the buffer is not displayed (there is garbage, there is no point in displaying it).
IP Logged
Sergey Jarovski

FabulaTech
===================
http://www.fabulatech.com
Pages: 1  Reply Reply  Notify of replies Notify of replies  Print Print

No topic | Next topic