* OpenProtocolInformation
@ 2018-10-23 23:06 TVKR
2018-10-23 23:12 ` OpenProtocolInformation Kinney, Michael D
0 siblings, 1 reply; 2+ messages in thread
From: TVKR @ 2018-10-23 23:06 UTC (permalink / raw)
To: edk2-devel
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
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: OpenProtocolInformation
2018-10-23 23:06 OpenProtocolInformation TVKR
@ 2018-10-23 23:12 ` Kinney, Michael D
0 siblings, 0 replies; 2+ messages in thread
From: Kinney, Michael D @ 2018-10-23 23:12 UTC (permalink / raw)
To: TVKR, edk2-devel@lists.01.org
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
> _______________________________________________
> edk2-devel mailing list
> edk2-devel@lists.01.org
> https://lists.01.org/mailman/listinfo/edk2-devel
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