git diff easy instructions

First git log to view the commit ID, record the ID of the patch you want to hit,
such as:
git log
commit 4ff35d800fa62123a28b7bda2a04e749addf1918
Author:chenfulin5 <chenfulin5@gmail.com>
Date:   Tue Dec 17:37:09 +0800

    [i²c EEPROM]

Commit Acb8cd154cecf20894ae25fc3787d6b6ba9b32ea
author:chenfulin5 <chenfulin5@gmail.com>
Date:   Mon Dec 18:45:03 +0800

    [i2c0 AT24] Add at24 eeprom


then you can run the following command to generate patch
git diff acb8cd15   4ff35d80  > Patch
Now that a patch has been generated, you can use git apply to patch it.