I am attaching the raw data in two cases (working - 2.mon.out) and not working (1.mon.out) files. working one is with the device having linux 3.10.20 and not working one is with linux 2.6.32. Here i have run same traffic in both the cases. Could you please suggest some pointers based on these. On Wed, May 25, 2016 at 8:54 PM, Narasimha M <mnarasimha786@xxxxxxxxx> wrote: > If possible yes, i need a help. I am working on it for the first time > on usb subsystem. I just tried using usbmon also, i got some raw data > in text file. Could you please let me know how it will help to debug > further?. > > One more observation is that if i decrease the mtu size to around 480, > then i am able to run the traffic. Which means the data is getting > corrupted after 480 bytes length or so. Is there any possible chance > for this case? > > > On Wed, May 25, 2016 at 6:26 PM, Bjørn Mork <bjorn@xxxxxxx> wrote: >> Narasimha M <mnarasimha786@xxxxxxxxx> writes: >> >>> Thanks for clear explanation. Could you please let me know where does >>> host_controller will be present is it in USB device or USB core part >>> of kernel. >>> >>> Actually my issue is that we ported Gobinet driver from open source to >>> support one dongle. After porting, it is working fine on little endian >>> host (linux-2.6.31 kernel). We have added some changes in driver code >>> o support it for big endian hosts. After adding the changes with the >>> help of le16_to_cpu () function dongle is working in one of our big >>> endian hosts (which has linux-3.10.20), but facing corrupted packet >>> issue in other bigendian supported host (linux-2.6.32). Could you >>> please help in providing some pointers here >> >> Sounds like you have a bug in your code. Did you expect me to make a >> more precise guess? >> >> >> Bjørn > > > > -- > Narasimha -- Narasimha
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