Public bug reported:
Binary package hint: udev
Hello!
I am facing problem with Huawei E1820 (12d1:1446 ) USB modem. Problem is
that it does not work properly (no ttyUSBX) if usb_modeswitch is not
executed.
After install the usb_modeswitch package the device works fine when
attaching it to running system, but when the device is attached to
system before booting the system the mode switch is not executed and the
device is not working.
Executing usb-modeswitch (with proper arguments) fixes the issue.
Quick-n-dirty fix: add network/if-pre-up.d/modeswitch script that
executes the command if some test file does not exist.
Should this be udev, usb_modeswitch or init scripts bug, i am not sure.
Sorry.
** Affects: udev (Ubuntu)
Importance: Undecided
Status: New
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usb_modeswitch not executed when doing cold boot on device that requires it to
work
https://bugs.launchpad.net/bugs/615833
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