From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yan Seiner Date: Sat, 08 Nov 2008 15:26:32 +0000 Subject: Re: keyspan USB serial not creating devices Message-Id: <4915AFA8.1060307@seiner.com> List-Id: References: <7d4fe611c622c163c76d7c430f09f61d.squirrel@www.datavault.us> In-Reply-To: <7d4fe611c622c163c76d7c430f09f61d.squirrel@www.datavault.us> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-hotplug@vger.kernel.org Greg KH wrote: > On Fri, Nov 07, 2008 at 09:02:43AM -0800, Yan Seiner wrote: > >> I have a keyspan USB serial dongle that has quit working. It used to work >> on a machine with an older kernel (2.6.18???), properly creating the >> /dev/ttyUSB device. Unfortunately I no longer have that machine. The >> machine it's on now runs a 2.6.26 kernel, and the device is not being >> created. The dongle is recognized, but no ttyUSB? are created: >> >> [139761.937391] usb 2-10.3: new full speed USB device using ehci_hcd and >> address 50 >> [139762.046702] usb 2-10.3: configuration #1 chosen from 1 choice >> [139762.047357] keyspan 2-10.3:1.0: Keyspan - (without firmware) >> converter detected >> [139762.047364] firmware: requesting keyspan/usa19qi.fw >> [139762.089684] usb 2-10.3: New USB device found, idVendorcd, >> idProduct0b >> [139762.089684] usb 2-10.3: New USB device strings: Mfr=0, Product=0, >> SerialNumber=0 >> >> It used to work with no firmware, but I went ahead and installed the >> firmware from the 2.6.27 kernel; no difference. Still no /dev/ttyUSB? >> device. >> > > These devices never would work without firmware, the older kernel > versions had the firmware built into the drivers. Are you sure you did > load the firmware for the device properly? Can you just build the > firmware into the driver and see if that solves your issue? > > Interesting... I built a vanilla 2.6.27.4 kernel, and the problem went away. Must be something debian does, or perhaps the 2.6.26 kernel handles the firmware differently from the 2.6.27 kernel. --Yan