On Fri, 2013-04-26 at 05:01 -0700, Paul Stoffregen wrote:
> What is the current recommended way to request the Modem Manager ignore
> a USB serial device which is not a modem?
>
> Until recently, this udev rule worked.
>
> KERNEL=="ttyACM*", ATTRS{idVendor}=="16c0",
> ATTRS{idProduct}=="04[789]?", MODE:="0666", ENV{ID_MM_DEVICE_IGNORE}="1"
>
> I've had at least 3 users report problems which appear to be related to
> newer versions of the Modem Manager apparently no longer respecting
> ENV{ID_MM_DEVICE_IGNORE} and opening the device shortly after it enumerates.
>From a quick look that rule should work, but remember you want to tag
the entire *USB device*, not just the serial port. udev rules parsing
changes might also affect whether or not this works. In any case, run
'udevadm control --export-db' and check whether the USB device parent of
the serial port actually has ID_MM_DEVICE_IGNORE defined.
Dan
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