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[Bug 575647] cdc-acm shows dev ttyACM0, ttyACM1 on 1st usb plugin, ttyACM1, ttyACM2 on subsequent plugins.
  • From: bugzilla_noreply@xxxxxxxxxx
  • Date: Mon, 1 Feb 2010 19:30:08 +0000
  • Message-id: <20100201193008.3CA3124551B@xxxxxxxxxxxxxxxxxxxxxx>

Greg Kroah-Hartman <gregkh@xxxxxxxxxx> changed:

What |Removed |Added
Info Provider| |miles.maybee@xxxxxxxxx

--- Comment #2 from Greg Kroah-Hartman <gregkh@xxxxxxxxxx> 2010-02-01 19:30:07
UTC ---
You have a userspace program that is keeping the device node open, so when the
device disconnects/reconnects, the kernel has to give it a new number.

Either don't disconnect the device, or find what program has the device node
open, not much the kernel can do about this.

What does 'lsof | grep ACM' show?

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