From: matt_sykes on
On 8 Apr, 08:26, "OCEAN.Long" <heartof...(a)gmail.com> wrote:
>   getlasterror( ) returns "2 " .
>
>   But , my dirver is shown in the Winobj.exe or in the DevView.exe,
> and see nothing singularity.

Make sure you clear the DO_INITIALISING flag from thew device object
at the end of AddDevice.

Without doing this the IO manager wont forward you any IRPs