44 lines
1.4 KiB
C
44 lines
1.4 KiB
C
#ifndef _HI_I2C_H
|
|
#define _HI_I2C_H
|
|
|
|
|
|
|
|
/* /dev/i2c-X ioctl commands. The ioctl's parameter is always an
|
|
* unsigned long, except for:
|
|
* - I2C_FUNCS, takes pointer to an unsigned long
|
|
* - I2C_RDWR, takes pointer to struct i2c_rdwr_ioctl_data
|
|
* - I2C_SMBUS, takes pointer to struct i2c_smbus_ioctl_data
|
|
*/
|
|
#define I2C_RETRIES 0x0701 /* number of times a device address should
|
|
be polled when not acknowledging */
|
|
#define I2C_TIMEOUT 0x0702 /* set timeout in units of 10 ms */
|
|
|
|
/* NOTE: Slave address is 7 or 10 bits, but 10-bit addresses
|
|
* are NOT supported! (due to code brokenness)
|
|
*/
|
|
#define I2C_SLAVE 0x0703 /* Use this slave address */
|
|
#define I2C_SLAVE_FORCE 0x0706 /* Use this slave address, even if it
|
|
is already in use by a driver! */
|
|
#define I2C_TENBIT 0x0704 /* 0 for 7 bit addrs, != 0 for 10 bit */
|
|
|
|
#define I2C_FUNCS 0x0705 /* Get the adapter functionality mask */
|
|
|
|
#define I2C_RDWR 0x0707 /* Combined R/W transfer (one STOP only) */
|
|
|
|
#define I2C_PEC 0x0708 /* != 0 to use PEC with SMBus */
|
|
#define I2C_SMBUS 0x0720 /* SMBus transfer */
|
|
#define I2C_16BIT_REG 0x0709 /* 16BIT REG WIDTH */
|
|
#define I2C_16BIT_DATA 0x070a /* 16BIT DATA WIDTH */
|
|
|
|
typedef struct hiI2C_DATA_S
|
|
{
|
|
unsigned char dev_addr;
|
|
unsigned int reg_addr;
|
|
unsigned int addr_byte_num;
|
|
unsigned int data;
|
|
unsigned int data_byte_num;
|
|
}I2C_DATA_S;
|
|
|
|
#endif
|
|
|