[GRLUG] usb stuff

[Steve Romanow]

On 6/22/2010 3:49 PM, Michael Mol wrote:
> On Tue, Jun 22, 2010 at 3:47 PM,<topher at t1kdevelopment.com>  wrote:
>    
>> On Tue, 22 Jun 2010, Michael Mol wrote:
>>
>>      
>>> On Tue, Jun 22, 2010 at 3:42 PM,<topher at t1kdevelopment.com>  wrote:
>>>        
>>>> On Tue, 22 Jun 2010, Michael Mol wrote:
>>>>
>>>>          
>>>>> On Tue, Jun 22, 2010 at 3:04 PM,<topher at t1kdevelopment.com>  wrote:
>>>>>            
>>>>>> I have a sansa clip that works great in linux.  Every now and again
>>>>>> though,
>>>>>> plugging in USB things seems to not be noticed, or only half noticed by
>>>>>> my
>>>>>> system.
>>>>>>
>>>>>> For example, my clip is usually loaded at /dev/sdb when I plug it in.
>>>>>>   At
>>>>>> the moment, it doesn't get anything at all in /dev/.  However, lsusb
>>>>>> lists
>>>>>> it just fine.
>>>>>>
>>>>>> What might be broken, and what should I restart to get it back?
>>>>>>
>>>>>> Topher
>>>>>>              
>>>>> Check dmesg. It could be a race condition where the device doesn't get
>>>>> itself initialized before the kernel/hotplug/udev asks it for some
>>>>> stuff related to creating device nodes.
>>>>>            
>>>> There's this:
>>>>
>>>> usb 2-1: new high speed USB device using ehci_hcd and address 18
>>>> hub 2-0:1.0: unable to enumerate USB device on port 1
>>>> usb 2-1: new high speed USB device using ehci_hcd and address 19
>>>>
>>>>
>>>> But it doesn't mean much to me.  :(
>>>>          
>>> You should see some mentions of SCSI after that; flash drives are
>>> operated as SCSI devices.
>>>        
>> Nope, those are the last three lines of dmesg.
>>      
> Best remaining suggestion is to try different USB ports. Other than
> that, it may be dying. Relevant bits of dmesg on the "half-working"
> occasions would be interesting.
>
>    
Is the sansa seen as a mass storage device, or do you have to use the 
stupid mtp stuff?

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