2019-07-04 19:08:06 +08:00
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# Linux SPI 设备驱动开发（x86平台）
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## Platform
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arch->x86->platform 下创建 board 文件。
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## Match
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spi_register_board_info <------------------------+
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pxa2xx_spi_probe |
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devm_spi_register_controller |
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spi_register_controller |
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spi_match_controller_to_boardinfo <--+
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bus_num 必须一致才会执行 spi_new_device()
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2019-07-04 19:14:49 +08:00
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补充 spidev [参考](https://blog.csdn.net/kunkliu/article/details/77966311)
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