Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758523Ab3HIRqn (ORCPT ); Fri, 9 Aug 2013 13:46:43 -0400 Received: from iolanthe.rowland.org ([192.131.102.54]:56207 "HELO iolanthe.rowland.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1758476Ab3HIRql (ORCPT ); Fri, 9 Aug 2013 13:46:41 -0400 Date: Fri, 9 Aug 2013 13:46:40 -0400 (EDT) From: Alan Stern X-X-Sender: stern@iolanthe.rowland.org To: Thomas Richter cc: linux@brodo.de, Subject: Re: [HANG] Trouble with NEC-based USB adapter in PCMCIA slot on E7110 In-Reply-To: <52048567.6020704@rus.uni-stuttgart.de> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 886 Lines: 22 On Fri, 9 Aug 2013, Thomas Richter wrote: > Hi Alan, hi Dominik, > > maybe you want me to help out a bit - I'm having trouble getting a > Delock PCMCIA to USB-2 adapter to work under linux, with strange > behavior in some situations. The trouble is that while I can *read* via > fast (usb 2.0) transfers from the port, an ehci-triggered write just > locks up (it does not Oops, though) and I'm pretty much stuck narrowing > down the problem. The best way to start will be to enable CONFIG_USB_DEBUG in your kernel and post the dmesg log. Also post a usbmon trace showing what happens when you try to write something. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/