Re: USB Composite Device, Serial + Mass Storage, could not install

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Are you adding 2 interfaces for the same device? or are you emulating 2
devices on the same chip with a hub above them?

--
Maxim Shatskih, Windows DDK MVP
StorageCraft Corporation
maxim@xxxxxxxxxxxxxxxx
http://www.storagecraft.com

"yingbohu" <yingbohu@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:51E41E21-405B-4FEF-ADA6-14E0150B8C20@xxxxxxxxxxxxxxxx
Vetzak,
I can really install a USB device as a virtual serial port on Win2K and
WinXP by using usbser.sys. A INF file is needed to do that. The problem is
that if I add more function such as Mass Storage then windows could not
install the virtual serial port successfully. Mass storage can still work so
I think the usbser.sys could not support composite virtual serial port.

Thanks for your information

"Vetzak" wrote:

I quickly gave up trying to use usbser.sys, because I couldn't install
it as a COM-port (Ports device class). I believe you can only deploy
usbser.sys for modem (Modem device class). So instead I wrote my own
USB-serial driver for Win2K and later. I runs great for different
device classes (Modem, Ports, Smart card). It's not hard to write such
a driver yourself.



.

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