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include/nuttx/i2c/i2c_master.h: Add the standard speed macros.

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dongjiuzhu
2018-08-27 06:02:13 -06:00
committed by Gregory Nutt
parent 05949ff79c
commit bd24562aa5
1 changed files with 7 additions and 0 deletions
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include/nuttx/i2c/i2c_master.h
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@@ -109,6 +109,13 @@
#define I2C_M_NOSTOP 0x0040 /* Message should not end with a STOP */
#define I2C_M_NOSTART 0x0080 /* Message should not begin with a START */
/* I2c bus speed */
#define I2C_SPEED_STANDARD 100000 /* Standard speed (100Khz) */
#define I2C_SPEED_FAST 400000 /* Fast speed (400Khz) */
#define I2C_SPEED_FAST_PLUS 1000000 /* Fast+ speed ( 1Mhz) */
#define I2C_SPEED_HIGH 3400000 /* High speed (3.4Mhz) */
/* I2C Character Driver IOCTL Commands **************************************/
/* The I2C driver is intended to support application testing of the I2C bus.
* The I2C driver simply wraps an instance of struct i2c_dev_s and then