Driver update problem for raw PDO and stacks
in [Device Drivers]
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From: gti4ever on 29 Jun 2010 21:53 Hi, I have a KMDF HID mini driver which creates a raw PDO. I have also install a UMDF driver on top of that raw PDO. So far everything works ok but I just found a problem. If I go to device manager, I can see both my HID device and my raw PDO device (raw PDO device is list as hidden device). But if I do a "Update driver software" on one of them, it will only update the driver for the one I selected but not the other one. BTW, I used one INF file for intalling/updating both drivers. Is there a way to force driver update on the one not selected? Or is there a way to disable driver update on those two deivces and force user to do uninstall then install? Thanks. G.
From: Doron Holan [MSFT] on 30 Jun 2010 12:26 no, there is no way to do this. each stack is independent. are you sure you want your raw PDO + UMDF stack be installed as a HID device? I would think you would want a different class d "gti4ever" wrote in message news:8BDDA080-2E55-4D93-A19B-603D9DD1749B(a)microsoft.com... Hi, I have a KMDF HID mini driver which creates a raw PDO. I have also install a UMDF driver on top of that raw PDO. So far everything works ok but I just found a problem. If I go to device manager, I can see both my HID device and my raw PDO device (raw PDO device is list as hidden device). But if I do a "Update driver software" on one of them, it will only update the driver for the one I selected but not the other one. BTW, I used one INF file for intalling/updating both drivers. Is there a way to force driver update on the one not selected? Or is there a way to disable driver update on those two deivces and force user to do uninstall then install? Thanks. G.
From: gti4ever on 30 Jun 2010 14:25 Thanks Doron, I can move the raw PDO + UMDF stack to another class but I am afraid this won't solve my problem. Users can still update one driver and forgot to update the other. Can I get rid of the UMDF and replace it with an export driver? Will that help in this case? Also, there is lots of floating point image processing in my code and I am not sure it is a good idea to put all of them into an export driver in kernel mode. Any suggestion? G. "Doron Holan [MSFT]" wrote: > no, there is no way to do this. each stack is independent. are you sure you > want your raw PDO + UMDF stack be installed as a HID device? I would think > you would want a different class > > d >
From: Doron Holan [MSFT] on 30 Jun 2010 19:38 an export driver does not fix anything. if you need both drivers to be updated at once, the best you can do is programitically at runtime detect each other's version number and fail if there is a mismatch d "gti4ever" wrote in message news:E50F27B6-FEB4-4421-8A85-FE9DDDE5B7E4(a)microsoft.com... Thanks Doron, I can move the raw PDO + UMDF stack to another class but I am afraid this won't solve my problem. Users can still update one driver and forgot to update the other. Can I get rid of the UMDF and replace it with an export driver? Will that help in this case? Also, there is lots of floating point image processing in my code and I am not sure it is a good idea to put all of them into an export driver in kernel mode. Any suggestion? G. "Doron Holan [MSFT]" wrote: > no, there is no way to do this. each stack is independent. are you sure > you > want your raw PDO + UMDF stack be installed as a HID device? I would think > you would want a different class > > d >
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