1 /**************************************************************************** 2 **************************************************************************** 3 *** 4 *** This header was automatically generated from a Linux kernel header 5 *** of the same name, to make information necessary for userspace to 6 *** call into the kernel available to libc. It contains only constants, 7 *** structures, and macros generated from the original header, and thus, 8 *** contains no copyrightable information. 9 *** 10 *** To edit the content of this header, modify the corresponding 11 *** source file (e.g. under external/kernel-headers/original/) then 12 *** run bionic/libc/kernel/tools/update_all.py 13 *** 14 *** Any manual change here will be lost the next time this script will 15 *** be run. You've been warned! 16 *** 17 **************************************************************************** 18 ****************************************************************************/ 19 #ifndef _UAPI_LINUX_I2C_H 20 #define _UAPI_LINUX_I2C_H 21 #include <linux/types.h> 22 struct i2c_msg { 23 __u16 addr; 24 __u16 flags; 25 #define I2C_M_RD 0x0001 26 #define I2C_M_TEN 0x0010 27 #define I2C_M_RECV_LEN 0x0400 28 #define I2C_M_NO_RD_ACK 0x0800 29 #define I2C_M_IGNORE_NAK 0x1000 30 #define I2C_M_REV_DIR_ADDR 0x2000 31 #define I2C_M_NOSTART 0x4000 32 #define I2C_M_STOP 0x8000 33 __u16 len; 34 __u8 * buf; 35 }; 36 #define I2C_FUNC_I2C 0x00000001 37 #define I2C_FUNC_10BIT_ADDR 0x00000002 38 #define I2C_FUNC_PROTOCOL_MANGLING 0x00000004 39 #define I2C_FUNC_SMBUS_PEC 0x00000008 40 #define I2C_FUNC_NOSTART 0x00000010 41 #define I2C_FUNC_SLAVE 0x00000020 42 #define I2C_FUNC_SMBUS_BLOCK_PROC_CALL 0x00008000 43 #define I2C_FUNC_SMBUS_QUICK 0x00010000 44 #define I2C_FUNC_SMBUS_READ_BYTE 0x00020000 45 #define I2C_FUNC_SMBUS_WRITE_BYTE 0x00040000 46 #define I2C_FUNC_SMBUS_READ_BYTE_DATA 0x00080000 47 #define I2C_FUNC_SMBUS_WRITE_BYTE_DATA 0x00100000 48 #define I2C_FUNC_SMBUS_READ_WORD_DATA 0x00200000 49 #define I2C_FUNC_SMBUS_WRITE_WORD_DATA 0x00400000 50 #define I2C_FUNC_SMBUS_PROC_CALL 0x00800000 51 #define I2C_FUNC_SMBUS_READ_BLOCK_DATA 0x01000000 52 #define I2C_FUNC_SMBUS_WRITE_BLOCK_DATA 0x02000000 53 #define I2C_FUNC_SMBUS_READ_I2C_BLOCK 0x04000000 54 #define I2C_FUNC_SMBUS_WRITE_I2C_BLOCK 0x08000000 55 #define I2C_FUNC_SMBUS_HOST_NOTIFY 0x10000000 56 #define I2C_FUNC_SMBUS_BYTE (I2C_FUNC_SMBUS_READ_BYTE | I2C_FUNC_SMBUS_WRITE_BYTE) 57 #define I2C_FUNC_SMBUS_BYTE_DATA (I2C_FUNC_SMBUS_READ_BYTE_DATA | I2C_FUNC_SMBUS_WRITE_BYTE_DATA) 58 #define I2C_FUNC_SMBUS_WORD_DATA (I2C_FUNC_SMBUS_READ_WORD_DATA | I2C_FUNC_SMBUS_WRITE_WORD_DATA) 59 #define I2C_FUNC_SMBUS_BLOCK_DATA (I2C_FUNC_SMBUS_READ_BLOCK_DATA | I2C_FUNC_SMBUS_WRITE_BLOCK_DATA) 60 #define I2C_FUNC_SMBUS_I2C_BLOCK (I2C_FUNC_SMBUS_READ_I2C_BLOCK | I2C_FUNC_SMBUS_WRITE_I2C_BLOCK) 61 #define I2C_FUNC_SMBUS_EMUL (I2C_FUNC_SMBUS_QUICK | I2C_FUNC_SMBUS_BYTE | I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA | I2C_FUNC_SMBUS_PROC_CALL | I2C_FUNC_SMBUS_WRITE_BLOCK_DATA | I2C_FUNC_SMBUS_I2C_BLOCK | I2C_FUNC_SMBUS_PEC) 62 #define I2C_SMBUS_BLOCK_MAX 32 63 union i2c_smbus_data { 64 __u8 byte; 65 __u16 word; 66 __u8 block[I2C_SMBUS_BLOCK_MAX + 2]; 67 }; 68 #define I2C_SMBUS_READ 1 69 #define I2C_SMBUS_WRITE 0 70 #define I2C_SMBUS_QUICK 0 71 #define I2C_SMBUS_BYTE 1 72 #define I2C_SMBUS_BYTE_DATA 2 73 #define I2C_SMBUS_WORD_DATA 3 74 #define I2C_SMBUS_PROC_CALL 4 75 #define I2C_SMBUS_BLOCK_DATA 5 76 #define I2C_SMBUS_I2C_BLOCK_BROKEN 6 77 #define I2C_SMBUS_BLOCK_PROC_CALL 7 78 #define I2C_SMBUS_I2C_BLOCK_DATA 8 79 #endif 80