[Bug 504897] [NEW] megatec_usb problem (did not claim interface)

[Thomy23]

Public bug reported:

Binary package hint: nut

Ubuntu Version: 9.10 x86
Nut: 2.4.1-3ubuntu2
libusb: 0-1.4 (2:0.1.12-13)
usbutils: 0.82-0ubuntu1


I have a problem getting my mustek powermust650 UPS to work with nut (it is officially supported using the megatec_usb driver).

When i try to connect to the UPS i always get:

root at controller:/lib/nut# upsdrvctl start
Network UPS Tools - UPS driver controller 2.4.1
Network UPS Tools - Megatec protocol driver 1.6 (2.4.1)
Serial-over-USB transport layer 0.10
ser_send_pace: Device detached? (error -1: error sending control message: Device or resource busy)
Successfully reconnected

the kernel log (dmesg) shows me many messages like:

[  907.862615] usb 1-1: usbfs: process 1414 (megatec_usb) did not claim
interface 0 before use


Greetings Thomas

** Affects: nut (Ubuntu)
     Importance: Undecided
         Status: New

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megatec_usb problem (did not claim interface)
https://bugs.launchpad.net/bugs/504897
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