[sane-devel] Problem with Epslon 1650 + Kernel 2.4.3: no lamp off

[Karl Heinz Kremer]

Does the lamp actually come on without you first scanning? Just probing  
the scanner
should not keep the lamp on. The scanner should be "smart" enough to  
not keep
the lamp on when it's not actually receiving the "start scan" command  
during it's
lamp timeout period.

Karl Heinz


On Feb 23, 2004, at 9:55 PM, Martin Weinberg wrote:

> Yes, it does.  So I don't think this is a sane problem per se, but
> some USB issue but since it is scanner related, I thought that someone
> might have an idea.  E.g. will the kernel or some utility (hotplug)
> keep trying to associate a module with the device since it is
> unclaimed?
>
> On Mon, Feb 23, 2004 at 07:32:34PM -0500, Karl Heinz Kremer wrote:
>> Wrong key... this should have gone to the mailing list as well:
>>
>> Begin forwarded message:
>>
>>> From: Karl Heinz Kremer <khk@khk.net>
>>> Date: February 23, 2004 7:31:33 PM EST
>>> To: Martin Weinberg <mdweinberg@comcast.net>
>>> Subject: Re: [sane-devel] Problem with Epslon 1650 + Kernel 2.4.3: no
>>> lamp off
>>>
>>> Does the status LED flash without Sane running?
>>>
>>> On Feb 23, 2004, at 8:52 AM, Martin Weinberg wrote:
>>>
>>>> Folks,
>>>>
>>>> I recently upgraded a Debian Sarge box from Linux 2.6.1 to 2.6.3.
>>>> Under 2.6.1, I used the scanner module. Since this is now deprecated
>>>> in 2.6.3, I configured libusb.
>>>>
>>>> No problems operating my Epson Perfection 1650, but now, using  
>>>> libusb,
>>>> the lamp never powers off!  I also notice that every few minutes,  
>>>> the
>>>> status light flashes, as it does when the unit is addressed.  It  
>>>> seems
>>>> as if the usb subsystem continues to "probe" the device.  Does  
>>>> anyone
>>>> have a clue how to deal with this?  For now, I simply unplug the
>>>> device
>>>> from the bus and then the lamp powers off after its default period.
>>>>
>>>> --Martin
>>>>
>>>> --  
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>>>
>>
>>
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>
> --  
>
> ======================================================================= 
> ====
>
> Martin Weinberg                      Phone: (413) 256-3044
> 21 Gulf Road
> Pelham, MA  01002