On Sat, Jan 20, 2018 at 03:06:10AM +0530, Mohan R wrote: > Hi, > > I'm very new to kernel, so apologies if anything i'm typing here is wrong > > 1. I'm working on a device (ST-SPEAR600-EVB) with 2.6.32.16 kernel That is a _very_ old and obsolete kernel version from many years ago. There have been thousands of changes to the USB subsystem since then. There's not much we can do here to help out with it, please contact the vendor who is forcing you to use such a kernel version, as you are paying them for that support. If you have problems using the latest kernel release (which is 4.14 right now), we will be glad to help you out. good luck! greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html