Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754389AbZDVKHT (ORCPT ); Wed, 22 Apr 2009 06:07:19 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752406AbZDVKHE (ORCPT ); Wed, 22 Apr 2009 06:07:04 -0400 Received: from langos.euedge.com ([209.190.22.130]:58273 "EHLO langos.euedge.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751609AbZDVKHC (ORCPT ); Wed, 22 Apr 2009 06:07:02 -0400 Message-ID: <49EEEC43.6030806@maroy.hu> Date: Wed, 22 Apr 2009 12:06:59 +0200 From: =?UTF-8?B?TWFyw7N5IMOBa29z?= User-Agent: Thunderbird 2.0.0.21 (X11/20090409) MIME-Version: 1.0 To: Oliver Neukum CC: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: cdc-acm driver hangs on poll() call - 2.6.27, works on 2.6.24 References: <49EDC44D.90106@maroy.hu> <200904211526.34199.oliver@neukum.org> In-Reply-To: <200904211526.34199.oliver@neukum.org> X-Enigmail-Version: 0.95.7 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1665 Lines: 46 Oliver, > Does it happen with 2.6.29? > Could you get dmesg of 2.6.2(7/9) with CONFIG_USB_DEBUG and debug > activated in drivers/usb/class/cdc-acm.c ? interesting, the dmesg output is not that talkative: Apr 22 11:50:37 tomodachi kernel: [ 623.236068] usb 2-1: new full speed USB device using uhci_hcd and address 2 Apr 22 11:50:37 tomodachi kernel: [ 623.400102] usb 2-1: New USB device found, idVendor=ffff, idProduct=0005 Apr 22 11:50:37 tomodachi kernel: [ 623.400107] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 Apr 22 11:50:37 tomodachi kernel: [ 623.400111] usb 2-1: Product: USBSerial Apr 22 11:50:37 tomodachi kernel: [ 623.400114] usb 2-1: Manufacturer: LPCUSB Apr 22 11:50:37 tomodachi kernel: [ 623.400117] usb 2-1: SerialNumber: DEADC0DE Apr 22 11:50:37 tomodachi kernel: [ 623.400654] usb 2-1: configuration #1 chosen from 1 choice Apr 22 11:50:37 tomodachi kernel: [ 623.453590] cdc_acm 2-1:1.0: ttyACM0: USB ACM device Apr 22 11:50:37 tomodachi kernel: [ 623.457094] usbcore: registered new interface driver cdc_acm Apr 22 11:50:37 tomodachi kernel: [ 623.457100] cdc_acm: v0.26:USB Abstract Control Model driver for USB modems and ISDN adapters even though: $ zcat /proc/config.gz | grep CONFIG_USB_DEBUG CONFIG_USB_DEBUG=y maybe it did not recompile the cdc-acm module after I changed the CONFIG_USB_DEBUG setting in .config? I'll do a clean recompile.. Akos -- 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/