darkkirb/qmk_firmware
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

[Docs] Update i2c_driver.md (#6665)

Browse source 
Fix missing arg of i2c_start
This commit is contained in:
Elliot Powell 2019-09-03 18:09:58 +01:00 committed by Drashna Jaelre
parent c522009816
commit e6a6b1f122
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
docs/i2c_driver.md
View file

@ -7,7 +7,7 @@ The I2C Master drivers used in QMK have a set of common functions to allow porta
|Function |Description |
|------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|`void i2c_init(void);` |Initializes the I2C driver. This function should be called once before any transaction is initiated. |
|`uint8_t i2c_start(uint8_t address);` |Starts an I2C transaction. Address is the 7-bit slave address without the direction bit. |
|`uint8_t i2c_start(uint8_t address, uint16_t timeout);` |Starts an I2C transaction. Address is the 7-bit slave address without the direction bit. |
|`uint8_t i2c_transmit(uint8_t address, uint8_t* data, uint16_t length, uint16_t timeout);` |Transmit data over I2C. Address is the 7-bit slave address without the direction. Returns status of transaction. |
|`uint8_t i2c_receive(uint8_t address, uint8_t* data, uint16_t length, uint16_t timeout);` |Receive data over I2C. Address is the 7-bit slave address without the direction. Saves number of bytes specified by `length` in `data` array. Returns status of transaction. |
|`uint8_t i2c_writeReg(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length, uint16_t timeout);` |Same as the `i2c_transmit` function but `regaddr` sets where in the slave the data will be written. |