Hi Greg, yeah .. Ideally it should not care for any HC. But I am writing an application, which is doing the USB tests, according to the test spec, to accomplish this I did introduce the ioctl according to my requirement. So I am not getting how the more than one HC is handled. Will be great if u can through some light on this issue. Each controller is having one port, so need to change the controller every time the USB port under use is changed. How can I incorporate it in my IOCTL. many thanks Prabhu On Fri, Jun 26, 2009 at 10:59 AM, Greg KH<greg@xxxxxxxxx> wrote: > On Fri, Jun 26, 2009 at 10:40:03AM +0530, Prabhu Chawandi wrote: >> Yes Alan, >> >> I can see the messages as >> 1. usb 1:1 <Controller 1> >> 2. usb 2:1 <Controller 2> >> >> But in the ioctl, I wrote to test for my sake. In the code it is >> taking Controller 1 only as i can print roothub devnum, which is >> always one. >> >> I am manipualting but getting kernel crash. >> >> Can u please guide me to make changes so that my code will handle the >> two host controllers properly. > > A USB driver should never care about any host controller. > > What is the task you are trying to accomplish here? > > thanks, > > 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