Re: sudo override

On Thu, 17 Oct 2024 06:51:12 -0400, Chris Ahlstrom <OFeem1987@teleworm.us> wrote:

Anssi Saari wrote this copyrighted missive and expects royalties:
>

Lawrence D'Oliveiro <ldo@nz.invalid> writes:
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On Thu, 17 Oct 2024 00:58:01 -0400, David W. Hodgins wrote:
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Plugging in the device will create the /dev entry only if the package
modemmanager is installed.

>
I don’t have modemmanager installed. I plugged in a USB-serial adapter,
and /dev/ttyUSB0 appeared. It disappeared when I unplugged the adapter.

>
Same here, for example the LTE module on my router has five USB-serial
interfaces (ttyUSB0-ttyUSB4) and modemmanager isn't installed.
>
In fact, I think It would be quite odd if modemmanager were required for
USB-serial adapter udev rules.

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I've used USB-to-serial adaptors to connect a laptop to (for example) a Cisco
router. No modem manager needed to get /dev/ttyUSB0. Used gtkterm IIRC.
This was years ago.
>

On my system ...
$ grep ttyUSB0 /lib/udev/rules.d/*
/lib/udev/rules.d/77-mm-fibocom-port-types.rules:#  ttyUSB0 (if #0): QCDM port
/lib/udev/rules.d/77-mm-fibocom-port-types.rules:#  ttyUSB0 (if #2): AT port
/lib/udev/rules.d/77-mm-fibocom-port-types.rules:#  ttyUSB0 (if #2): debug port (ignore)
/lib/udev/rules.d/77-mm-fibocom-port-types.rules:#  ttyUSB0 (if #0): debug port (ignore)
/lib/udev/rules.d/77-mm-fibocom-port-types.rules:#  ttyUSB0 (if #0): AT port
/lib/udev/rules.d/77-mm-fibocom-port-types.rules:#  ttyUSB0 (if #2): AT port
/lib/udev/rules.d/77-mm-quectel-port-types.rules:#  ttyUSB0 (if #0): QCDM/DIAG port
/lib/udev/rules.d/77-mm-quectel-port-types.rules:#  ttyUSB0 (if #0): QCDM/DIAG port
/lib/udev/rules.d/77-mm-quectel-port-types.rules:#  ttyUSB0 (if #0): QCDM/DIAG port
/lib/udev/rules.d/77-mm-quectel-port-types.rules:#  ttyUSB0 (if #0): QCDM/DIAG port
/lib/udev/rules.d/77-mm-quectel-port-types.rules:#  ttyUSB0 (if #0): QCDM/DIAG port
/lib/udev/rules.d/77-mm-quectel-port-types.rules:#  ttyUSB0 (if #0): QCDM/DIAG port
Those two files are from the modemmanager package.
What package has the ttyUSB0 udev rules on your system?
Regards, Dave Hodgins