OpenProtocolInformation

OpenProtocolInformation

[TVKR]

Hi,

If the main purpose of the OpenProtocolInformation service is to provide
the complete list of agents currently using a specific protocol interface
then what is the need for providing the Handle argument too as an input?
Why does it matter what Handle was this queried protocol installed on?

Thanks

Re: OpenProtocolInformation

[Kinney, Michael D]

The same protocol can be installed on many handles in
the handle database.  For example, if there are multiple
mass storage devices in a platform, there will be
multiple Block I/O Protocols in the handle database.

Mike

> -----Original Message-----
> From: edk2-devel [mailto:edk2-devel-
> bounces@lists.01.org] On Behalf Of TVKR
> Sent: Tuesday, October 23, 2018 4:06 PM
> To: edk2-devel@lists.01.org
> Subject: [edk2] OpenProtocolInformation
> 
> Hi,
> 
> If the main purpose of the OpenProtocolInformation
> service is to provide
> the complete list of agents currently using a specific
> protocol interface
> then what is the need for providing the Handle argument
> too as an input?
> Why does it matter what Handle was this queried protocol
> installed on?
> 
> Thanks
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