Re: Single driver for Multiple cards with same signature

mahi <> wrote:
>
>I have developed a windows-xp based PCI card driver.Now I am using
>single card, with single card my application is working fine.Now I
>have inserted the second card with the same signature(same VendorId
>and DeviceId),
>
>So how can i access that second card using the same driver.
>
>Which function is used for this problem, Can anyone help me regarding
>this issue, it will be great pleasure.

It's not exactly clear what you are asking. Assuming you haven't done
anything silly (like use global variables), your existing driver should
handle both instances of your device without any extra coding.

Are you asking how to access both devices from user mode? How are you
accessing the single device right now? If you have created your own named
symbolic link name, then that's a problem for multiple instances. In that
case, Maxim's suggestion is exactly right -- use a device interface.
--
Tim Roberts,
Providenza & Boekelheide, Inc.