On Tue, 24 Feb 2009, Naveen@moschip wrote: > Hi All, > > Is there any support for split transactions ( ISOCH IN ) in linux kernel ?. Yes, of course there is. > I am using linux-2.6.27 and connected USB full speed camera (Logitech > QuickCam Pro 3000) under a high speed hub. The camera is detected by PWC > driver & when I tried to open the application (IP Telephony), it is not > capturing the video. Where as If I connect the device directly to ohci > roothub, the application is successfully capturing the video. You should use usbmon to collect a trace for each of the two cases: attached directly to OHCI and attached via a high-speed hub. Comparison of the two should indicate where the problem lies. Instructions for usbmon are in Documentation/usb/usbmon.txt. Alan Stern -- 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