It looks like your usb-serial adapter is busted... Run "dmesg" with
it unplugged, then plug it in and run "dmesg" again. If you don't
see any usb hotplug messages then your adapter is probably dead.
On Dec 6, 2010, at 5:09 PM, Petri Laihonen wrote:
> Anyone have pointers to give some direction?
>
> I'm trying to connect to the networking switch via usb to console
> cable. (usb <--> rj45) I have serial to rj45 cable also, but my
> laptop does not have serial connector.
>
> The problem is that all info I found about this is that I'm
> supposed to select /dev/ttyUSB0 or similar device for connecting.
>
> I don't have one, and even if I do, how would I know which one of
> the "numbers" represent the USB port I have the cable connected to.
>
> pietu@pibari ~ $ lsusb
> Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
> Bus 004 Device 002: ID 0483:2016 SGS Thomson Microelectronics
> Fingerprint Reader
> Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
> Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
> Bus 002 Device 005: ID 046d:c51b Logitech, Inc. V220 Cordless
> Optical Mouse for Notebooks
> Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
> Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>
> This is all the USB I found
> pietu@pibari ~ $ ls -l /dev/usb*
> crw------- 1 root root 252, 0 2010-12-06 16:16 /dev/usbmon0
> crw------- 1 root root 252, 1 2010-12-06 16:16 /dev/usbmon1
> crw------- 1 root root 252, 2 2010-12-06 16:16 /dev/usbmon2
> crw------- 1 root root 252, 3 2010-12-06 16:16 /dev/usbmon3
> crw------- 1 root root 252, 4 2010-12-06 16:16 /dev/usbmon4
> crw------- 1 root root 252, 5 2010-12-06 16:16 /dev/usbmon5
>
>
>
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