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USB Tethering

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Published in 2015-10-28 12:02:40 | Show all floors |Read mode
I can't configure usb0 to be my Samsung Note tablet. When I plug in the tablet using a USB cable, I get an error from cdc_acm in dmesg that says, "This device cannot do calls on its own. It is not a modem." The tablet is not recognized in the file system. It is also not assigned usb0. If I blacklist cdc_acm in /etc/modprobe.d/blacklist.conf, the error is dmesg goes away and I can see the file system of the tablet, but it is not assigned to usb0.


I can currently tether my Raspberry pi by defining usb0 in /etc/network/interface and selecting tether usb connection using an android app. It's a sweet setup because the pi gets an internet connection from the tablet and the tablet can SSH and VNC into the pi over the USB cable.


I'd like to have this same configuration in Ubuntu. Can you help?


One odd thing, instead of lsusb saying Samsung Electronics for the device, like it does on the Rpi, it says Samsung Electronics Co, GT-I9100 Phone [Galaxy SII], GT-I9300 [Galaxy S III], GT-P7500 [Galaxy Tab 10.1]. My tablet is a GTN-5110 wifi only tablet.


Another odd thing. Every time I check or uncheck Tether on the tablet, the USB device number in dmesg is incremented. I.e. "USB Disconnect, device number 5", then "new high speed USB device number 6 using sunxi-ehci." The next time 6 disconnects and there's a new USB device number 7, etc.


All I want is usb0, so that I can configure it in the interfaces file.


Finally, I also tried not starting network-manager using the ubuntu startup programs gui. That either didn't work or it didn't help.


Thanks for your help.

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Published in 2022-6-16 17:28:16 | Show all floors
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