On Thu, 14 Nov 2013, vichy wrote:
> hi all:
> I have some questions:
> 1. if I need to capture all the data host capture from bus, usb mon
> binary can reach this goal?
Yes.
> 2. if #1 is Yes. from usb mon text I need
> a. compile kernel with usbmon support
> b. access /dev/usbmonx
> c. feed the binary file to wireshark.
> in b), shall we write a user mode program?
No, just use the usbmon program. However, it creates a text file, not
a binary file. You can't feed the output to wireshark.
If you want binary output that wireshark can use, you have to run a
different program like tcpdump or dumpcap.
> if so, is there any sample flow I can reference?
See the README file and the man page that are part of the usbmon
package:
http://people.redhat.com/zaitcev/linux/usbmon-6.tar.gz
> 3. if #1 is No, is there any default kernel config can do that?
> or I should write memcpy by hand in urb_complete?
>
> Thanks for your help
Alan Stern
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