[Dtb-talk] USB Suspend Mode

[Flint Million]

The USB Suspend mode only activates if the  options.xml file is
present. Therefore, if you are not using a flash drive that has the
options file, the freature will not be active and your battery life
will not be impacted.

I do not yet know if it is the case that removing a flash drive that
had options.xml on it then inserting another leaves the USB suspend
mode disabled, but I will test this. It also may be the case that
options.xml is only parsed when the unit is turned on, so if you
insert a drive later that has options.xml on it, it will not take
effect.

For the curious, the options.xml file is also used for diagnostic
purposes, such as dumping statics to a text file on the drive,
causing the unit to enter technician service mode,  clearing the user
data (bookmarks, remembered positions, etc.) and so on. Therefore
options.xml is largely undocumented except in the library service
manuals.

This feature won't fix all drives, there's already a couple I've found
that just won't owrk even with this feature enabled. Sometimes it
seems the DTBM just can't even get a lock on the drive at all and thus
never even gets to the point where the options.xml file is used.

fm


On Sun, Mar 14, 2010 at 11:41 AM, Daniel Vejil <dvejil at sbcglobal.net> wrote:
> If we run the XML file, and wish to re-enable  USB Suspend mode, is there a
> command for that, or is USB Suspend mode disabled, only if the XML file is
> found on the USB Flash Drive?
>
> I tried running the XML file with a flaky 4Gb SanDisk Cruzer USB flash
> drive, but it didn't get rid of the flakiness.  So, I don't want to use
> extra battery power, for no good reason.
>
> What makes the 4Gb SanDisk Cruzer USB flash drive flaky, when it is used
> with the NLS DTBM, is that if I first insert the drive into the DTBM and
> then power it on, everything works as normal--no problems.  However, if the
> DTBM is already powered on, and I insert this particular Flash Drive into
> it, I get a "cartridge Error".
>
> Go Figure,
> Daniel Vejil
>
>
> At 08:09 PM 3/13/2010, you wrote:
>>
>> The XML worked with my transcend 2 GB.  I also tried several SD cards
>> from Kingston and Transcend that did not work with my USB card reader,
>> but now do.  Thanks
>>
>> Flint Million wrote:
>> > I have posted the XML file that can be used to disable USB Suspend mode.
>> > It is located at:
>> >
>> ...
>>
>>
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