Hi all,
We are planning to develop UEFI FMP capsule F/W update, and we have seen \FmpDevicePkg\FmpDxe and MdeModulePkg\Application\CapsuleApp in https://github.com/tianocore/edk2. The examples are both related to capsule update issue. The problems we have are:

* How to generate capsule image? Is there any sample code or operation flow?
* Is it enough only to modify with FmpDxe and CapsuleApp(in edk2) for developing capsule update? Do other examples need to be considered? Such as \MdeModulePkg\Universal\EsrtFmpDxe in edk2 example.
* How to test capsule F/W update process in UEFI shell? Is there a sample code for the app?

Any suggesting is highly appreciated!
Thanks!