Hi - I just solved the issue. I gave the wrong argument for the openProtocol
(by child ).
The agent supposed to be your driver biding handle.
Thanks anyway!
Yossef
From: Yossef Efraim [mailto:yoss...@mellanox.com]
Sent: Thursday, December 20, 2012 5:56 PM
To: edk2-devel@lists.sourceforge.net
Subject: [edk2] Creating a child handle for a device driver
Hi,
When running DevTree In the shell I see the controllers hierarchy.
How do you create such an hierarchy ?
For example if im a PCI controller wishing to create a child controller which
will appear under me in the DevTree output.
Currently I'm creating the child by installing device path on null handle ( a
null arg returns newly created handle) and notifying the system about the child
parent relationship by opening the PCI_IO by child handle.
But it doenst seem to create the child handle as I do not see it in DevTree.
I looked around the driver writer guide, there is no description for
opening\binding to a child handle.
Our help will be appreciated,
Yossef
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