On Thu, 20 Feb 2014, Larry Finger wrote: > Alan, > > The Lenovo Yogi 13 tablet comes with a Realtek RTL8723AU wireless device > built > in. Realtek sent me a driver that I modified so that it would build on new > kernels, and created a GitHub repo so that it would be available to the > community. One of the users of this driver is reporting intermittent warnings > that say > > WARNING: CPU: 1 PID: 0 at drivers/usb/core/urb.c:452 > usb_submit_urb+0x205/0x5d0() > usb 1-1.4: BOGUS urb xfer, pipe 3 != type 1 > > The full splat is available at http://pastebin.com/VcFPd4Yt. > > As no other user has reported this problem, I think this is some kind of > problem > with the wireless device or the adapter on this box. Even so, I would like to > know more about what is happening. In addition, Jes Sorensen at RedHat is > working on making the driver suitable for submission to the staging part of > the > tree. Just in case other uses run into the problem, it would be good to know > if > a fix is possible. > > Can you suggest any addition logging for when this situation occurs? The user > is > generating his own kernels, thus we can add any patches we want.
You probably don't need any additional logging. The WARNING is telling you that the usb_read_interrupt_complete() routine in the 8723au driver called usb_submit_urb() with an incorrect pipe value. The URB specified a BULK pipe, but the endpoint in question is actually an INTERRUPT endpoint. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
