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it-etch:~# lsusb
Bus 006 Device 003: ID 0204:6025 Chipsbank Microelectronics Co., Ltd CBM2080 Flash drive controller
Bus 006 Device 001: ID 0000:0000
Bus 002 Device 003: ID 0557:7000 ATEN International Co., Ltd Hub
Bus 002 Device 005: ID 045e:0040 Microsoft Corp. Wheel Mouse Optical
Bus 002 Device 004: ID 413c:2003 Dell Computer Corp. Keyboard
Bus 002 Device 001: ID 0000:0000
Bus 001 Device 001: ID 0000:0000
Bus 005 Device 001: ID 0000:0000
Bus 004 Device 006: ID 2478:2008 Tripp-Lite U209-000-R Serial Port
Bus 004 Device 001: ID 0000:0000
Bus 003 Device 001: ID 0000:0000
have you tried opening a shell and typing the following, before plugging in the USB-to-Serial converter ?
tail -f /var/log/messages
to see what the output is and how/if the system detected the device and assigned it a /dev/node ?
Code:
it-etch:~# tail -f /var/log/messages
Sep 9 13:23:00 it-etch -- MARK --
Sep 9 13:43:00 it-etch -- MARK --
Sep 9 14:03:01 it-etch -- MARK --
Sep 9 14:23:01 it-etch -- MARK --
Sep 9 14:43:01 it-etch -- MARK --
Sep 9 15:03:01 it-etch -- MARK --
Sep 9 15:23:01 it-etch -- MARK --
Sep 9 15:43:02 it-etch -- MARK --
Sep 9 16:03:02 it-etch -- MARK --
Sep 9 16:23:02 it-etch -- MARK --
Sep 9 16:28:20 it-etch kernel: usb 6-7: reset high speed USB device using ehci_hcd and address 3
Sep 9 16:28:21 it-etch kernel: usb 6-7: reset high speed USB device using ehci_hcd and address 3
Sep 9 16:28:21 it-etch kernel: ohci_hcd 0000:00:13.3: wakeup
Sep 9 16:28:21 it-etch kernel: usb 4-2: new full speed USB device using ohci_hcd and address 6
Sep 9 16:28:21 it-etch kernel: usb 4-2: configuration #1 chosen from 1 choice
Sep 9 16:28:22 it-etch kernel: usbcore: registered new driver usbserial
Sep 9 16:28:22 it-etch kernel: drivers/usb/serial/usb-serial.c: USB Serial support registered for generic
Sep 9 16:28:22 it-etch kernel: usbcore: registered new driver usbserial_generic
Sep 9 16:28:22 it-etch kernel: drivers/usb/serial/usb-serial.c: USB Serial Driver core
Sep 9 16:28:22 it-etch kernel: drivers/usb/serial/usb-serial.c: USB Serial support registered for pl2303
Sep 9 16:28:22 it-etch kernel: pl2303 4-2:1.0: pl2303 converter detected
Sep 9 16:28:22 it-etch kernel: usb 4-2: pl2303 converter now attached to ttyUSB0
Sep 9 16:28:22 it-etch kernel: usbcore: registered new driver pl2303
Sep 9 16:28:22 it-etch kernel: drivers/usb/serial/pl2303.c: Prolific PL2303 USB to serial adaptor driver
theres a few things you can look at to see if your device is being detected and how it's being identified if it is...
in my case the usb-to-serial converted was identified, the driver loaded automatically and it was assigned as /dev/ttyUSB0
Alright, after typing lsusb this is what was returned:
Quote:
[user@localhost log]$ lsusb
Bus 005 Device 001: ID 0000:0000
Bus 004 Device 001: ID 0000:0000
Bus 003 Device 002: ID 067b:2303 Prolific Technology, Inc. PL2303 Serial Port
Bus 003 Device 001: ID 0000:0000
Bus 002 Device 006: ID 05ac:0304 Apple Computer, Inc.
Bus 002 Device 001: ID 0000:0000
Bus 001 Device 003: ID 0c45:62c0 Acer Crystal Eye Webcam
Bus 001 Device 001: ID 0000:0000
So it sees it. But, after typing dmesg, I get this:
Quote:
usb 3-1: new full speed USB device using uhci_hcd and address 2
usb 3-1: configuration #1 chosen from 1 choice
Other than that, thats all I can find out. Where should I go from here?
I tried that new tail command and it still doesn't output anything. It doesn't give me errors, nor does it really do anything for me. I have to cntl+z to quit it because it just sits there with a solid cursor.
Any other suggestions? Thanks again for all your help. It's hard trying to troubleshoot something when the methods dont seem to be working.
You have a log called message as well as the messages logs.
the messages logs are 0 (zero) bytes.
The message log is rather large and doesn't appear to be rotating properly like it should.
try tail -f /var/log/message
then plug in the USB to Serial converter..
That might show what we are looking for.
Then if I were you I would look into why your logs don't all appear to be rotating properly. and the messages log is being written to a file called message instead of messages
possibly something related to the messages log in /etc/syslog.conf got altered ?
Excuse me for butting in but I have the identical problem with Linpus on an Aspire One connecting to a garmin gps receiver.
Quote:
Hmm something doesn't look right in your logs.
You have a log called message as well as the messages logs.
the messages logs are 0 (zero) bytes.
The message log is rather large and doesn't appear to be rotating properly like it should.
Identical behaviour here.
Quote:
try
tail -f /var/log/message
then plug in the USB to Serial converter..
Unfortunately this is Linpus which is more than likely installed on an SDD in order to prevent memory wear they do not enable normal logging.
I have not yet looked in to how they are disabling it.
On the rest of this subject; the kernel installed by Linpus at least on my Acer Aspire does not include the usb-serial-generic feature of the usbserial driver, as such you can not easily add usb to serial converters that are not one of the very specific ones that are compiled in.
I have tried to compile the module but it needs the kernel source and dev tools which are hard to get installed due to dependencies caused by the differences between Linpus and Fedora.
So if anyone has succeeded please can you reply here with a link to the module binary.
SIZE: Did you load some stripped down version of Ubuntu, or did you fit a large SD card to ensure that the AA1 did not run out of space?
USABILITY: I bought the AA1 for my mother to use and she's 82 and so I wanted to minimise the learning task. One of the reasons for choosing the AA1 was its very simplistic user interface. Is it possible to either use that same UI on Ubuntu or to find one similar that can be used with Ubuntu?
COMMENT: I've come across this kind of problem before - my own Asus EEE PC came with a hybrid mix of Debian and Xandros and I soon found that not much would install on it. If I obtained things from Debian sources then they clashed with the Xandros components and vice versa. Then I decided to bite the bullet and wipe the machine and load Ubuntu and everything has been sweetness and light ever since. So I am listening to your recommendation.
FINALLY: After eading this thread I gave up on the (USB-Serial + Pace Modem) strategy and reverted to trying to get my Pluscom USB dial up modem to work. I did succeed in getting that to work in the end and the solution is written up in another thread.
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Dynex USB-to-Serial driver for Linpus
