As far as I know, UEFI doesn't define such device path for eMMC or SD device.
So it's hard to work out a generic/cross-platform solution.
But you could develop a platform-specific solution, such as using Vendor Device
Path or Controller Device Path, to represent the location of eMMC device.
From: Andrew Fish [mailto:[email protected]]
Sent: Wednesday, October 22, 2014 08:36
To: [email protected]
Subject: Re: [edk2] Firmware Volume Block Protocol
On Oct 21, 2014, at 5:31 PM, Narinder Dhillon
<[email protected]<mailto:[email protected]>> wrote:
Hi All,
I am trying to implement a non-volatile variable storage at the top end of an
eMMC flash device. From all the reading, I have implemented the firmware volume
block protocol in the eMMC driver.
What I can't figure is, what kind of device path do I install along with FVB
protocol ?
I have seen examples of vendor hardware, media device.
How does the OS discover the eMMC flash device?
Thanks,
Andrew Fish
Thanx.
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