usr
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src
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kernels
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3.10.0-1160.142.1.el7.tuxcare.els1.x86_64
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include
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linux
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spi
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mcp23s08.h
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/* FIXME driver should be able to handle IRQs... */ struct mcp23s08_chip_info { bool is_present; /* true if populated */ unsigned pullups; /* BIT(x) means enable pullup x */ }; struct mcp23s08_platform_data { /* For mcp23s08, up to 4 slaves (numbered 0..3) can share one SPI * chipselect, each providing 1 gpio_chip instance with 8 gpios. * For mpc23s17, up to 8 slaves (numbered 0..7) can share one SPI * chipselect, each providing 1 gpio_chip (port A + port B) with * 16 gpios. */ struct mcp23s08_chip_info chip[8]; /* "base" is the number of the first GPIO. Dynamic assignment is * not currently supported, and even if there are gaps in chip * addressing the GPIO numbers are sequential .. so for example * if only slaves 0 and 3 are present, their GPIOs range from * base to base+15 (or base+31 for s17 variant). */ unsigned base; };
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