From: Thomas Gufler <tom.gufler@tirol.com>
To: linux-hotplug@vger.kernel.org
Subject: USB reconnect problem
Date: Sat, 14 Apr 2007 15:34:55 +0000 [thread overview]
Message-ID: <4620F49F.5070309@tirol.com> (raw)
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
reply other threads:[~2007-04-14 15:34 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4620F49F.5070309@tirol.com \
--to=tom.gufler@tirol.com \
--cc=linux-hotplug@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.