On Wed, Jun 21, 2006 at 03:07:04PM +0530, Ajay Jain wrote:
> Hi,
>
> We are using usb function exposed as a serial device. It is our own
> proprietary hardware (running linux) exposed as a serial device. The
> host side (windows) identifies our serial device with the driver
> "wceusbsh.sys". The enumeration goes successfully and we get to see
> our device in the device manager. To carry communication we open
> "file=CreateFile ("\\\\.\\wceusbsh001", GENERIC_READ + GENERIC_WRITE,
> 0, 0, OPEN_EXISTING, 0, NULL);" on the host side. At times we see
> success while at times windows gives an error message "Device not
> found". The device manager shows our device properly (with the driver
> installed etc). What could be the cause of this error?
Which Linux driver are you using for this?
Does the USB datastream show any oddities?
thanks,
greg k-h
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