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Date:	Fri, 21 Mar 2014 14:22:20 +0100
From:	Oliver Neukum <>
To:	Jagdish Gedia <>
Cc:	Alan Stern <>,
	"" <>,
	"" <>
Subject: Re: Check if usb device is suspended

On Fri, 2014-03-21 at 17:17 +0530, Jagdish Gedia wrote:
> I want to resume the usb device on some event, so i want to check if
> it is suspended. I think by above method i can check if the device is
> already suspended, but may be i will miss to resume the device if it
> is suspending. Is there any way through which i can check if device is
> suspending?

Just don't do that. If a device needs to be awake for some operation,
call usb_autopm_get(). If the device is already awake, it is a nop
besides keeping the device awake.
Checking is not a sensible strategy.


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