Safely Remove Hardware? Does it turn off Power?

[Guest]

I've been trying to research for our Computer Club whether or not the "Safely
Remove Hardware" applet actually turns off the power to the device and if
does, does it wait for the device to be physically removed before returning
power to the port?

I've noted the light on my USB flash drive goes out after sending the remove
command which seems to support this. I've also seen reference to the D3
power state when this command is sent but I've seen different D3 states
referenced on hot-pluggable devices.

I sure will appreciate any and all input.
Thanks,
Jim

 

[Doron Holan [MS]]

it depends on the bus. the underlying bus driver will turn the device off.
it will be powered on when the device is restarted or if the device is
removed and reinserted.

d

 

[Guest]

Thanks Doron,
So I can report that when the light goes out on my USB flash drive that the
power is off and only after a reinsertion does the power return?
Is this refered to by "Selective Suspension of USB"?
Thanks Again,
Jim

 

[Doron Holan [MS]]

that is true for a device that is not externally powered. selective suspend
is something else entirely. selective suspend is when devices are turned
off after they have idled out (in very simple terms).

d

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[Guest]

Thanks Again... Had a hard time finding a definitive answer.
Take Care Jim

 

[.A.]

This is interesting, I found that only Windows XP (it could've been the
hardware at the time) turned the light off. My copy of Vista doe not. I would
like to get Windows Vista to always switch the power (and thus light off)
when I undock the USB. How can I do this please.

..A.

 

[.A.]

This is interesting, I found that only Windows XP (it could've been the
hardware at the time) turned the light off. My copy of Vista doe not. I would
like to get Windows Vista to always switch the power (and thus light off)
when I undock the USB. How can I do this please.

..A.

 

[quester]

This is interesting, I found that only Windows XP (it could've been the
hardware at the time) turned the light off. My copy of Vista doe not. I would
like to get Windows Vista to always switch the power (and thus light off)
when I undock the USB. How can I do this please.

..A.

 

[glint]

This is interesting, I found that only Windows XP (it could've been the
hardware at the time) turned the light off. My copy of Vista doe not. I would
like to get Windows Vista to always switch the power (and thus light off)
when I undock the USB. How can I do this please.

..A.

 

[Samuel]

This is interesting, I found that only Windows XP (it could've been the
hardware at the time) turned the light off. My copy of Vista doe not. I would
like to get Windows Vista to always switch the power (and thus light off)
when I undock the USB. How can I do this please.

..A.

 

[Doron Holan [MSFT]]

it will not turn off the light
d

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Please do not send e-mail directly to this alias. this alias is for
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[Samuel]

Sorry for it posting 4 times, I had trouble. All I would like to do is change
a setting that will make Vista switch the light off of the USB memory stick
when it is undocked - like XP used to. How would I do this please? There must
be a way.

 

[David L. Burkhart]

Here's the short of it. I need to know if there's a way to make dirvers
written for Vista to work on Windows XP.

I got a new system (with Vista, of course). So, like most people without a
lot of money to blow, I made my system dual bootable for Windows XP. That
way I don't have to buy (again) expensive software that I already own that
was working fine on Windows XP.

I have had no luck getting drivers for my sound hardware. The OEM of the
computer, Gateway, is refusing to be any help at all. I am finally giving
that up and, in desparation, am grasping at straws, thinking that perhaps
the Vista drivers can somehow be used on XP.


David L. Burkhart

 

[peter]

So under Device manager what is your sound card listed as....
Would Gateway be using this companies hardware/software???
http://www.realtek.com.tw/downloads...=24&Level=4&Conn=3&DownTypeID=3&GetDown=false

peter

 

[Doron Holan [MSFT]]

no, there is no way

d

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Please do not send e-mail directly to this alias. this alias is for
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This posting is provided "AS IS" with no warranties, and confers no rights.

 

[Doron Holan [MSFT]]

the state of the light had nothing to do with data integrity, it only has to
do with if there is enough power on the usb hub port to power the device

d

 

[Doron Holan [MSFT]]

not true. once the device has been safely removed, the drivers on top of it
have been unloaded and all data has been flushed.