Re: detecting / determining USB ports

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#2238

From: Bob Gonder
Date: Wed, 04 Apr 2007 14:29

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Mike Collins wrote:

>Is there an easy way to determine if a system has ANY USB ports?

I think this will

USB_CONTROLLER_INFO_0  from
IOCTL_USB_USER_REQUEST
http://msdn2.microsoft.com/en-us/library/aa476224.aspx

Which uses DeviceIoControl()
I think they are saying to use \\.\FDO as the filename for CreateFile
that gives the handle needed for DeviceIoControl.


For more general info, you might start here
Bus Driver Interfaces Available to USB Clients
http://msdn2.microsoft.com/en-us/library/ms790710.aspx

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From: Bob Gonder <notbg@notmindspring.invalid>
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Subject: Re: detecting / determining USB ports
Date: Wed, 04 Apr 2007 07:29:47 -0700
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