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List:       linux1394-user
Subject:    Re: multiple sbp2 devices at once plug in
From:       jochen issing <jochen () mcf-music ! de>
Date:       2005-01-22 11:30:18
Message-ID: 41F2394A.2020001 () mcf-music ! de
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Stefan Richter wrote:

>jochen issing wrote:
>  
>
>>I have a Firewire-harddisk and a Firewire-DVD-burner, which are both
>>connected to the same ilink-port. (My Adapter is a built in notebook-
>>adapter from Sony -FX505) When I switch on both, harddisk and disc-drive
>>and plug the cable, only the harddisc is detected. If I plug in the 
>>cable and
>>then switch on the harddisc and afterwards the dvd-drive, everything works
>>fine. Is there a problem with detecting multiple sbp2 devices at once?
>>    
>>
>
>Let us say there are problems to detect some devices _in general_.
>
>If you are seeing the message "The root node is not cycle master
>capable; selecting a new root node and resetting..." in the syslog or
>dmesg whenever you connect the two devices at once, you could try to
>replace the drivers/linux1394 directory of the kernel sources by the
>trunk from linux1394.org, rebuild modules, and load ieee1394 with the
>new command line parameter disable_irm=1. This is a workaround for a
>known flaw in ieee1394. But try the updated drivers without this
>parameter too, since there were some other fixes committed just recently.
>  
>
thanks for the quick answer - I was offline some days... I don't get the 
mentioned
message but always "error parsing configrom for node xxx.
But I think I will the try patch anyway, later.

Thanks so far - I will post any news.

jochen

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