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QuestionXPS laptop display driver problems Pin
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QuestionIdentifying Printers Pin
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AnswerRe: Identifying Printers Pin
Randor 8-Nov-08 14:52
professional Randor 8-Nov-08 14:52 
Bram van Kampen wrote:
Does anybody know how the system distinguishes USB items that way.


When you connect your USB printer to the USB bus... Windows is internally requesting information about the device using the DeviceIoControl Function.[^] The IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION[^] control code will return data containing USB_DEVICE_DESCRIPTOR.[^] This struct contains information about what type of device it is Et cetera... Windows saves this data into the registry and associates the serial number with various entries in the registry which represent installed device objects. In theory the serial number should be unique and would remain associated with the printer name you see in usermode.

Hope this helps.
Best Wishes,
-David Delaune
GeneralRe: Identifying Printers Pin
Bram van Kampen12-Nov-08 15:10
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QuestionXP installation hangs [modified] Pin
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GeneralHelp with NetGear WGR614 Wireless Router [modified] Pin
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QuestionError message display after install driver printer Pin
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AnswerRe: Error message display after install driver printer Pin
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