add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/include/linux/spi/spi_bitbang.h
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@@ -44,6 +44,7 @@
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 /* start or stop queue processing */
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 extern int spi_bitbang_start(struct spi_bitbang *spi);
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+extern int spi_bitbang_init(struct spi_bitbang *spi);
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 extern void spi_bitbang_stop(struct spi_bitbang *spi);
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 #endif	/* __SPI_BITBANG_H */