USB serial COM capture not working

edit

Hi,

Thanks for the reply.

I am basically trying to make protocol sniffer for LORA.

We have our own hardware which will keep receiving LORA packets at specified frequency and these received LORA packets will be send to UART Debug serial port. And with the use serial to USB converter, LORA packets will be send to PC over USB.

I would like see this data coming on USB on a wireshark, May be later i will dissect USB for seeing packets in our protocol format.

But current challenge is to see data packet on Wireshark (data on USB).

Similar thing i have seen working for BACnet MSTP data packets coming on the USB and observed on the Wireshark but main difference is BACnet MSTP has one more utility called mstp.exe along with USBPcap.exe which makes it work.

Thanks, Warm Regards, Nilesh.

The BACNet mstp utility is an "ExtCap" program. These programs extend the capturing ability of Wireshark by using external applications to capture the data and return it to Wireshark as a pcap stream.

See the man page on ExtCap for more info.

Hi,

Thanks for the comments.

Is there any way to capture USB data and see in Wireshark OR we need to create utility similar to mstp? OR is there currently any utility available which will allow to capture USB packets and show on the Wireshark?

Thanks, Warm Regards, Nilesh.

Sure, USBPcap will capture on the USB hubs, so the traffic will be in there somewhere. Just install using the Wireshark installer. You'll have to work out which USB hub your USB to Serial converter is connected to.

As I noted previously, the protocol data will be interspersed in USB packets so probably won't be easily viewable.

Hi, Testing with USBPcap.exe is already done on Windows10 to capture serial data coming on the USB but its not working. Can we try with Linux OS.?? Thanks, Warm Regards, Nilesh.