Wakeup Internal USB device

  • Thread starter Thread starter Toby
  • Start date Start date
T

Toby

I have a P4C800-E_DLX and I recently updated my case, while doing this I
placed my card reader internally and plugged it to the usb7 header on the
motherboard. Well as you may have guessed the system didn't see it, XP Pro
SP2, I thought that my header genderbender maybe sus but no plugging other
usb devices in all ran fine, I then tried to hot plug my card reader and it
too ran fine. so my situation is I have a Internal device that won't wake up
unless it's hot plugged, any suggestions for a work around would be great
Thanks

Peter.
 
"Toby" said:
I have a P4C800-E_DLX and I recently updated my case, while doing this I
placed my card reader internally and plugged it to the usb7 header on the
motherboard. Well as you may have guessed the system didn't see it, XP Pro
SP2, I thought that my header genderbender maybe sus but no plugging other
usb devices in all ran fine, I then tried to hot plug my card reader and it
too ran fine. so my situation is I have a Internal device that won't wake up
unless it's hot plugged, any suggestions for a work around would be great
Thanks

Peter.
Click to expand...

How does it respond when plugged into a rear port ?
How does it respond when the included four port USB slot adapter
is used ?

While this would not be a permanent solution, you could also
try setting the USBPWxx header of the USB port you are using,
to the +5VSB jumper position, instead of the factory default
+5V jumper position. Powering from +5VSB means your USB card
reader would remain powered while the computer was in S3 sleep.
Perhaps then, every time you come out of sleep, the reader
would work, but unplugging the computer might put you back
in the non-working state.

Plenty of room for experiments...

It could be, that the power up interval takes so long on the card
reader, that any bus resets issued by the host are being missed.
I have no idea what the timing constraints are on USB, or indeed
if it is possible for a device to go unrecognized from a
protocol perspective.

Does the card reader have any internal jumpering options ?

Paul
 
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