gt; *To:* [email protected]
> *Subject:* Re: [edk2] Multiple Protocols on same driver...
>
> ** **
>
> Using ATA passthru, say you get a device using protocol block_io ... now
> you use LocalDevicePath to look for the ATA PassThru, it gives you the
> device hand
David -
Yes, you work your way back from the device path node that has the Block I/O
installed on it.
Tim
From: David F. [mailto:[email protected]]
Sent: Wednesday, September 04, 2013 4:47 PM
To: [email protected]
Subject: Re: [edk2] Multiple Protocols on same driver...
Using
Using ATA passthru, say you get a device using protocol block_io ... now
you use LocalDevicePath to look for the ATA PassThru, it gives you the
device handle with one of the ATA PassThru protocols available on that
handle. But where is the other one / how would I find it? Or is it simply
if you'
On Sep 4, 2013, at 3:11 PM, "David F." wrote:
> Hi,
>
> So when a driver produces two protocol interfaces to access the device using
> the same protocol GUID. How do you open each instance?
>
They are produced on different handles, as only a single protocol GUID can
exist per handle.
> S
Hi,
So when a driver produces two protocol interfaces to access the device
using the same protocol GUID. How do you open each instance?
Say you look for all BlkIo protocol devices via HandleBuffer, then want to
look if an ATA or SCSI passthru is attached as well, so use same handle,
but ATA pass
