Re: USB Device not getting detected at boot time

Tech-Archive recommends: Repair Windows Errors & Optimize Windows Performance

From: Hans (hans_at_discussions.microsoft.com)
Date: 01/27/05 

Date: Thu, 27 Jan 2005 09:25:56 +0530

Thanks a lot Dave. Could you please elaborate on what u had written.
> The driver should look to see if the device is inserted when it loads.
I guess the driver does see if the device is inserted when it loads,
otherwise, this problem would have occurred everytime.

Regards,
Himanshu
"Dave Heil (exMVP)" <nospam@vytek.com> wrote in message
news:7sqfv0dv5vkholp5207qc7bfvoop1m8qsp@4ax.com...
> On Wed, 26 Jan 2005 12:14:41 +0530, "Hans"
> <hans@discussions.microsoft.com> wrote:
>
> >Hi,
> >I have figured out that USB Keyboard/Mouse/Hard Disk works fine
> >when I plug it in after the OS has booted. However, if the USB device is
> >already connected when turning on the power, then the same is not
> >recognised/seen. This happens once or twice in 10-15 trials(this figure
is
> >variable).
> >
> >Any suggestions on this would be appreciated.
> >
> >Regards,
> >Hans
> >
> This is caused by the device insert interrupt not firing on bootup.
> The driver should look to see if the device is inserted when it loads.
>
>
>
> Dave Heil
> Vytek Inc.

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