From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lists.gentoo.org ([140.105.134.102] helo=robin.gentoo.org) by nuthatch.gentoo.org with esmtp (Exim 4.62) (envelope-from ) id 1HwZe1-00019o-2I for garchives@archives.gentoo.org; Fri, 08 Jun 2007 08:16:30 +0000 Received: from robin.gentoo.org (localhost [127.0.0.1]) by robin.gentoo.org (8.14.0/8.14.0) with SMTP id l588FAmR022711; Fri, 8 Jun 2007 08:15:10 GMT Received: from mail.gmx.net (mail.gmx.net [213.165.64.20]) by robin.gentoo.org (8.14.0/8.14.0) with SMTP id l5889dY1015112 for ; Fri, 8 Jun 2007 08:09:39 GMT Received: (qmail invoked by alias); 08 Jun 2007 08:09:36 -0000 Received: from HSI-KBW-091-089-115-192.hsi2.kabelbw.de (EHLO a64.frankies.home) [91.89.115.192] by mail.gmx.net (mp010) with SMTP; 08 Jun 2007 10:09:36 +0200 X-Authenticated: #497570 X-Provags-ID: V01U2FsdGVkX1/gSZVbn5XgyaXIDt1MCPHCZQ5N3C/pWMDUu+Gao8 Kl8rukC3hnZN97 From: Petric Frank To: gentoo-user@lists.gentoo.org Subject: [gentoo-user] USB serial adapter not working Date: Fri, 8 Jun 2007 10:10:30 +0200 User-Agent: KMail/1.9.5 Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200706081010.30321.pfrank@gmx.de> X-Y-GMX-Trusted: 0 X-Archives-Salt: 881f03e4-7242-49e9-ad45-c7774b5da669 X-Archives-Hash: 17f4915ab66e38f9ea7f4ade7882b6ac Hello, i own a USB docking station which also contains a serial connector. The host will do USB 2.0 (kernel module ehci-hcd) and detects the PL2303 serial port properly. It loads the appropiate kernel module, but at the end it fails somehow with the following message: ---------------- cut -------------------- pl2303 ttyUSB0: pl2303_open - failed submitting interrupt urb, error -28 ---------------- cut -------------------- As result the device /dev/ttyUSB0 is allocated by udev, but not working. After some tests i got a work around. I have to unload the kernel module ehci-hcd. Due uhci-hcd remains loaded the device works in USB 1.1 mode. Here the serial port works properly. Is there a fix the keep me from unloading the kernel module every time i want to use the serial port ? For example by directing the system to always bind the serial port to uhci-hcd (USB 1.1). Or better by a fix for ehci-hcd/pl2303 kernel. My system is Gentoo 2007.0, i386 and x86_64. lsusb tells (limited to the docking station): ---------------- cut -------------------- Bus 005 Device 009: ID 067b:0000 Prolific Technology, Inc. PL2301 USB-USB Bridge Bus 005 Device 006: ID 067b:2305 Prolific Technology, Inc. PL2305 Parallel Port Bus 005 Device 008: ID 067b:2303 Prolific Technology, Inc. PL2303 Serial Port Bus 005 Device 007: ID 0d3d:0001 Tangtop Technology Co., Ltd Bus 005 Device 005: ID 05e3:0604 Genesys Logic, Inc. USB 1.1 Hub Bus 005 Device 004: ID 1631:6200 Bus 005 Device 003: ID 0409:0058 NEC Corp. HighSpeed Hub ---------------- cut -------------------- regards Petric -- gentoo-user@gentoo.org mailing list