After a few months, I thought I didn't learn anything. Why? I went to work so early every day, and then I went there to read the materials, but I always read those things, what input subsystem, I2C subsystem? I remember reading it there a few months ago. How can I see that I still don't understand it? Every time I start from the beginning. .
After reflecting on it, I think it may be that I have never wanted to see it through, so I always have to look at it from the beginning. After reading it for a while, I put it down again, and I don't know how to summarize it, go to record, and look at it without any purpose. It took me a long time to turn around and watch others make progress. I think I should wake up.
In the future, let's take a look at everything and let it go. Don't worry about it. Let's take a look at it later and look at it later. In this way, nothing can be learned, and it will only waste time. We also need to summarize the entire event process every time we read something. The combination of upper and lower layers also needs to be cleared. Stick to getting something transparent and then let it go.