minix3/include/minix/i2c.h

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2020-02-21 00:59:27 +05:30
#ifndef __MINIX_I2C_H
#define __MINIX_I2C_H
/*
* Minix I2C /dev Interface.
*
* Same as NetBSD/OpenBSD interface but with a flat struct (i.e. no pointers).
* The NetBSD/OpenBSD interface can still be used on i2c device files. The
* ioctl(2) function will translate to/from the Minix version of the struct.
*/
#include <sys/types.h>
#include <dev/i2c/i2c_io.h>
#include <minix/ioctl.h>
typedef struct minix_i2c_ioctl_exec {
i2c_op_t iie_op; /* operation to perform */
i2c_addr_t iie_addr; /* address of device */
uint8_t iie_cmd[I2C_EXEC_MAX_CMDLEN]; /* pointer to command */
size_t iie_cmdlen; /* length of command */
uint8_t iie_buf[I2C_EXEC_MAX_BUFLEN]; /* pointer to data buffer */
size_t iie_buflen; /* length of data buffer */
} minix_i2c_ioctl_exec_t;
#define MINIX_I2C_IOCTL_EXEC _IOWR('I', 1, minix_i2c_ioctl_exec_t)
#endif /* __MINIX_I2C_H */