I brought a WaveShare 7-inch HDMI LCD and it provides a USB touchscreen.
But the company only provide binary driver and images, which is quite bad. Installing binary driver will break self compiled kernel, and you can’t get updated kernels.
I asked the company to provide the source code but they refused. They said they won’t provide any source code because other companies can copy very fast so that their products can’t sell out at good price. 阅读原文 »

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