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Old 08-14-2004, 01:39 AM   #1
earcam
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Registered: Aug 2004
Location: London
Distribution: suse, debian
Posts: 13

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Question USB hot unplug ( hotplugctl )


Hi folks,


Background
I have a JungSoft Muzio mp3 player, in SuSE 8.1 it was recognised and could be read from/written to; but after umount the device would still display the "usb connecting" message* , and after physical removal or power off it would report a corrupt file system (though it still worked fine, but would whinge about the corrupt fs whenever turned on).
* The mp3 player displays two messages "usb connecting" and "transfer in progress", the "usb connecting" message is always displayed when there's no transfer.

I now have a copy of SuSE 9.1 pro, and the problem has been reduced... now after umount it still displays "usb connecting" but if unplugged it won't report a corrupt fs. However when the device is inserted again it's not recognised...

As the main machine (holding all the music) in the house is on 24/7, i'd rather not have to reboot each time i want to unplug the mp3.

On a windows system after clicking some disconnect icon near the clock the device shuts down and starts up as a player, powering itself from usb - it can then be safely disconnected. No drivers were required for the afore mentioned OS, it operates as a generic mass storage device


Questions
Does anyone know if a specific usb device can be disabled/ejected?

i have the hotplug and autofs daemon running, could these cause this kind of problem?

i've tried using hotplugctl, but i can't find any documentation (suse manuals or web) to help identify what the hwid hardware ID is. Any ideas?


thanks,
Caspar
 
  


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