> I see that with stall=y, I have repeated messages like this on the host, a little after enumeration: > [2091018.128077] usb 1-5: reset high speed USB device using ehci_hcd and address 71 Thanks for your help with this. We are seeing these reset messages as and they repeate every 15-20 seconds until the host OS gives up. Rob -----Original Message----- From: Gadiyar, Anand [mailto:gadiyar@xxxxxx] Sent: Tuesday, August 24, 2010 10:31 AM To: Alan Stern; Murphy, Robert Cc: Greg KH; linux-usb@xxxxxxxxxxxxxxx; Hardy, Ron Subject: RE: Windows fails to install FBSG based drive Alan Stern wrote: > On Tue, 24 Aug 2010, Murphy, Robert wrote: > > > > What happens when you plug your gadget into a host running Linux? > > > Does it behave any differently? > > No, we see the same problem if we plug it into a Linux host. > > Then you should capture a usbmon trace on the Linux host and post it > here. It will give us a good hint as to where the problem lies. > Instructions are in the kernel source file > Documentation/usb/usbmon.txt. > I quickly tried this with v2.6.36-rc1 on an OMAP4 board (similar MUSB controller as the OMAP3 that Robert is running). I see that with stall=y, I have repeated messages like this on the host, a little after enumeration: [2091018.128077] usb 1-5: reset high speed USB device using ehci_hcd and address 71 Assuming Robert's problem is due to the same cause, here're a couple of usbmon traces from my test - one with stall=n passed to g_file_storage, and one without. (I've added 2 blank lines in the stall=y log, just before I got the reset message). The corresponding dmesg logs, are at the top of the same traces. - Anand -- 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
