Remote WAKE_UP on usbserial device

NTDEV
1

Doron:
In this post http://www.osronline.com/showthread.cfm?link=199451, you explain me a possible solution for the problem where I need to implement the remote wake up in a device which uses usbser.sys along with other filter drivers. As usbser.sys is the PPO, we can not issue this IRP in other drivers. The solution involves a lot of code and you mention if it is worthy. Unfortunately we need to implement the remote wake up feature hence the solution provided in the post is the only one? Is there some other thing we can work on to implement it?
Thanks!

2

That is the only way

d

dent from a phine with no keynoard

-----Original Message-----
From: xxxxx@pounceconsulting.com
Sent: Friday, March 04, 2011 10:49 AM
To: Windows System Software Devs Interest List
Subject: [ntdev] Remote WAKE_UP on usbserial device

Doron:
In this post http://www.osronline.com/showthread.cfm?link=199451, you explain me a possible solution for the problem where I need to implement the remote wake up in a device which uses usbser.sys along with other filter drivers. As usbser.sys is the PPO, we can not issue this IRP in other drivers. The solution involves a lot of code and you mention if it is worthy. Unfortunately we need to implement the remote wake up feature hence the solution provided in the post is the only one? Is there some other thing we can work on to implement it?
Thanks!

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3

Hi ,

I have another question about Remote Wake up feature.
At the beginning my device does not support remote wake up ,and now the hardware engineer add this feature into the firmware . Should i modify my USB driver to compliant with it ? while i had set power policy as OSR USB FX2 did.

It is assumed that there are three scenarios .

  1. The PC sleep/wake up device.
  2. The device sleep/wake up PC.
  3. The device tell the PC to sleep device .

Is there any difference among these three scenarios in USB Driver 's view ?