From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Gufler Date: Sat, 14 Apr 2007 15:34:55 +0000 Subject: USB reconnect problem Message-Id: <4620F49F.5070309@tirol.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-hotplug@vger.kernel.org Hi, I use a Huawei E220 UMTS/HSDPA modem for my internet connection. When I connect the modem before booting everything works fine. I get a /dev/ttyUSB0, /dev/ttyUSB1 and /dev/ttyUSB2 device. But when I remove the device and reconnect it later (without rebooting) only /dev/ttyUSB0 is created and the modem no longer works (at least until the next reboot). /var/log/message looks like this when the modem is detected during the initial boot: usbcore: registered new interface driver usbserial_generic drivers/usb/serial/usb-serial.c: USB Serial Driver core drivers/usb/serial/usb-serial.c: USB Serial support registered for GSM modem (1-port) option 3-2:1.0: GSM modem (1-port) converter detected usb 3-2: GSM modem (1-port) converter now attached to ttyUSB0 option 3-2:1.1: GSM modem (1-port) converter detected usb 3-2: GSM modem (1-port) converter now attached to ttyUSB1 option 3-2:1.2: GSM modem (1-port) converter detected usb 3-2: GSM modem (1-port) converter now attached to ttyUSB2 usbcore: registered new interface driver option drivers/usb/serial/option.c: USB Driver for GSM modems: v0.7.1 usbcore: registered new interface driver libusual removing: usb 3-2: USB disconnect, address 2 option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0 option 3-2:1.0: device disconnected option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1 option 3-2:1.1: device disconnected option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2 option 3-2:1.2: device disconnected and reconnect: usb 3-2: new full speed USB device using uhci_hcd and address 3 usb 3-2: configuration #1 chosen from 1 choice option 3-2:1.0: GSM modem (1-port) converter detected usb 3-2: GSM modem (1-port) converter now attached to ttyUSB0 This is logs are from a Ubuntu Feisty System (kernel 2.6.20, udev-108) Any suggestions? Thomas ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Linux-hotplug-devel mailing list http://linux-hotplug.sourceforge.net Linux-hotplug-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-hotplug-devel