Plug in one end of cable
[ 1882.167155] usb 4-1.1.4: new high-speed USB device number 4 using
ehci-pci
[ 1882.278177] usb 4-1.1.4: New USB device found, idVendor=067b,
idProduct=25a1
[ 1882.278183] usb 4-1.1.4: New USB device strings: Mfr=1, Product=2,
SerialNumber=0
[ 1882.278187] usb 4-1.1.4: Product: USB Transfer Cable
[ 1882.278191] usb 4-1.1.4: Manufacturer: Prolific Technology Inc.
[ 1882.301597] plusb 4-1.1.4:1.0 usb0: register 'plusb' at
usb-0000:00:1d.0-1.1.4, Prolific PL-2301/PL-2302/PL-25A1/PL-27A1,
1e:1c:40:06:14:68
[ 1882.301642] usbcore: registered new interface driver plusb
[ 1882.306204] plusb 4-1.1.4:1.0 enp0s29u1u1u4: renamed from usb0
[ 1882.333434] IPv6: ADDRCONF(NETDEV_UP): enp0s29u1u1u4: link is not ready
Plug in other end of cable also
[ 1887.342562] plusb 4-1.1.4:1.0 enp0s29u1u1u4: kevent 12 may have been
dropped
[ 1887.342580] plusb 4-1.1.4:1.0 enp0s29u1u1u4: kevent 12 may have been
dropped
[ 1887.344176] plusb 4-1.1.4:1.0 enp0s29u1u1u4: kevent 12 may have been
dropped
[ 1887.344197] plusb 4-1.1.4:1.0 enp0s29u1u1u4: kevent 12 may have been
dropped
[ 1906.022817] usb 4-1.1.3: new high-speed USB device number 5 using
ehci-pci
[ 1906.133374] usb 4-1.1.3: New USB device found, idVendor=067b,
idProduct=25a1
[ 1906.133381] usb 4-1.1.3: New USB device strings: Mfr=1, Product=2,
SerialNumber=0
[ 1906.133385] usb 4-1.1.3: Product: USB Transfer Cable
[ 1906.133389] usb 4-1.1.3: Manufacturer: Prolific Technology Inc.
[ 1906.134334] plusb 4-1.1.3:1.0 usb0: register 'plusb' at
usb-0000:00:1d.0-1.1.3, Prolific PL-2301/PL-2302/PL-25A1/PL-27A1,
1e:1c:40:06:14:68
[ 1906.152962] plusb 4-1.1.3:1.0 enp0s29u1u1u3: renamed from usb0
[ 1906.185788] IPv6: ADDRCONF(NETDEV_UP): enp0s29u1u1u3: link is not ready
[ 1911.405952] plusb 4-1.1.3:1.0 enp0s29u1u1u3: kevent 12 may have been
dropped
[ 1911.405966] plusb 4-1.1.3:1.0 enp0s29u1u1u3: kevent 12 may have been
dropped
[ 1911.407590] plusb 4-1.1.3:1.0 enp0s29u1u1u3: kevent 12 may have been
dropped
[ 1911.407614] plusb 4-1.1.3:1.0 enp0s29u1u1u3: kevent 12 may have been
dropped
root@debian-jan13:/home/richard#
On 06/19/2018 08:12 AM, Russell Senior wrote:
Just as an example of something remotely like what you might expect to see
in the dmesg output, here's what I see when I plug a usb-ethernet adapter
into a Ubuntu 16.04 USB 3 port:
[...]
[2793539.351788] usb 3-2: new SuperSpeed USB device number 2 using xhci_hcd
[2793539.378837] usb 3-2: New USB device found, idVendor=0b95,
idProduct=1790
[2793539.378846] usb 3-2: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[2793539.378851] usb 3-2: Product: AX88179
[2793539.378856] usb 3-2: Manufacturer: ASIX Elec. Corp.
[2793539.378861] usb 3-2: SerialNumber: 000050B61F4505
[2793540.800220] ax88179_178a 3-2:1.0 eth0: register 'ax88179_178a' at
usb-0000:00:14.0-2, ASIX AX88179 USB 3.0 Gigabit Ethernet, 00:50:b6:1f:45:05
[2793540.801218] usbcore: registered new interface driver ax88179_178a
[2793540.842186] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[2793541.169959] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
The link is not ready because I haven't connected an ethernet cable to the
adapter, nor an active device to the other end of the ethernet cable.
Note, in my case I see the ethernet interface is named eth0. Your mileage
may vary.
On Tue, Jun 19, 2018 at 5:27 AM, Russell Senior <russ...@personaltelco.net>
wrote:
So, do you see the usbN interface or not?
On Tue, Jun 19, 2018 at 5:12 AM, Richard Owlett <rowl...@cloud85.net>
wrote:
On 06/19/2018 06:45 AM, Russell Senior wrote:
Here is someone 10 years ago, using debian:
https://jonmccune.wordpress.com/2008/12/09/prolific-pl-25a1-
usb-to-usb-bridge-in-linux/
Now bookmarked. I read. It stated in part "... a new usbX network
interface (view with `ifconfig -a`)."
I tried and was given much - need to read up to understand what it tells
me.
Then I read the rest of your post ;/
What your distribution does (even if it is still Debian) might be
different
today, but it looks like it creates a network interface (usbN, in this
case). Again, your mileage might vary, but the dmesg output should tell
you what interface name is assigned.
You could also compare the output before and after plugging in the cable
of
the command: ip addr
For example:
ip addr > /tmp/before-plugging.txt
[plug in device]
ip addr > /tmp/after-plugging.txt
diff -u /tmp/before-plugging.txt /tmp/after-plugging.txt
The difference should be the newly created network interface.
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