Problems installing virtual serial driver on windows embedded

[Marc Wetzel]

Hi Dean,

before I bother you with my problem in detail, just a quick question
regarding the usb-serial example.

We cannot get the example firmware running on a device connected to a
PC installed with windows embedded standard 7 64bit.
We can see the device is correctly enumerated using the tool usbview,
but the driver installation fails.
There is some error-message about missing files.

We use your .inf file, patched our vendor and product id into it. We
tested on a normal win7 64bit, and this was working perfectly.

BR
Marc

[Dean Camera]

Marc,

I haven't got access to a Windows Embedded machine -- If I remember
correctly I had access to a download through my University's MSDNAA
program, but that's now expired so I can test this. Isn't the
configuration of Win7 Embedded modular, so you get to choose on
installation time what drivers to include?

I suspect this is a case of Embedded not including the internal
usbser.sys driver files my INF file references, or perhaps it is
located in a different directory. Google turns up this thread:

http://social.msdn.microsoft.com/Forums/ar-SA/quebecmisc/thread/56315793-9a01-4cf4-8991-24cc749c9d9a

Which seems to support this; you need to select the driver package
listed there when you create the installation image to get the
usbser.sys driver included in the base install.

Cheers!
- Dean

[How Chen]

Hi, Dean,

I met similar problem on win7 embedded 64-bit, I saw the conversation that shows you have a inf file, could you also provide it to me? where can I download this inf file?

Cheers,
How

[Dean Camera]

Hi How,

I never got to try Windows XP Embedded (obligatory "WHAT YEAR IS IT?" meme here) but I read reports of success by copying the missing usbser.sys driver file from a regular Windows installation. With that driver file and the INF driver in the latest LUFA releases - which are now 64-bit compatible - it *should* work.

- Dean

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