Re: usbmon info

[ravikumar <ravikumar.vallabhu@xxxxxxxxx>]

as the usbmon.txt provided a perl script to receive the input.
Do you talking about the following function(from usbmon.txt)

class ParsedLine {
        int data_len;           /* Available length of data */
        byte data[];

        void parseData(StringTokenizer st) {
What is String Tokenizer st. ? Is this from /sys/kernel/debug/usbmon/*t file?
                int availwords = st.countTokens();
                data = "" byte[availwords * 4];
                data_len = 0;
                while (st.hasMoreTokens()) {
                        String data_str = st.nextToken();
                        int len = data_str.length() / 2;
                        int i;
                        int b;  // byte is signed, apparently?! XXX
                        for (i = 0; i < len; i++) {
                                // data[data_len] = Byte.parseByte(
                                //     data_str.substring(i*2, i*2 + 2),
                                //     16);
                                b = Integer.parseInt(
                                     data_str.substring(i*2, i*2 + 2),
                                     16);
                                if (b >= 128)
                                        b *= -1;
                                data[data_len] = (byte) b;
                                data_len++;
                        }
                }
        }
}
Could you please provide more description for  this function? Viz what are inputs and outputs.

....receive the input....which if the USB is the network hardware...then the incoming data is TCP/IP....ARP and all sorts of that structures....correct?

I did not get exactly what this mean? do please elaborate  it.

Thanks & Regards,
Ravikumar

Peter Teoh wrote:

On Jan 28, 2008 1:45 PM, ravikumar <ravikumar.vallabhu@xxxxxxxxx> wrote:

But i'm unable to undserstand the documentation for parsing data.
I need only two things data length and flow.

May be I am wrong....but I think u don't have to understand the documentation, as the usbmon.txt provided a perl script to receive the input....which if the USB is the network hardware...then the incoming data is TCP/IP....ARP and all sorts of that structures....correct?