root / lab4 / .minix-src / include / minix / i2c.h @ 13
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1 | 13 | up20180614 | #ifndef __MINIX_I2C_H
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2 | #define __MINIX_I2C_H
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3 | |||
4 | /*
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5 | * Minix I2C /dev Interface.
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6 | *
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7 | * Same as NetBSD/OpenBSD interface but with a flat struct (i.e. no pointers).
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8 | * The NetBSD/OpenBSD interface can still be used on i2c device files. The
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9 | * ioctl(2) function will translate to/from the Minix version of the struct.
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10 | */
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11 | |||
12 | #include <sys/types.h> |
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13 | #include <dev/i2c/i2c_io.h> |
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14 | #include <minix/ioctl.h> |
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15 | |||
16 | typedef struct minix_i2c_ioctl_exec { |
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17 | i2c_op_t iie_op; /* operation to perform */
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18 | i2c_addr_t iie_addr; /* address of device */
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19 | uint8_t iie_cmd[I2C_EXEC_MAX_CMDLEN]; /* pointer to command */
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20 | size_t iie_cmdlen; /* length of command */
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21 | uint8_t iie_buf[I2C_EXEC_MAX_BUFLEN]; /* pointer to data buffer */
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22 | size_t iie_buflen; /* length of data buffer */
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23 | } minix_i2c_ioctl_exec_t; |
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24 | |||
25 | #define MINIX_I2C_IOCTL_EXEC _IOWR('I', 1, minix_i2c_ioctl_exec_t) |
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26 | |||
27 | #endif /* __MINIX_I2C_H */ |