Function wpilib_sys::bindings::HAL_ReadI2C

pub unsafe extern "C" fn HAL_ReadI2C(
    port: Type, 
    deviceAddress: i32, 
    buffer: *mut u8, 
    count: i32
) -> i32

Executes a read transaction with the device.

Reads bytes from a device. Most I2C devices will auto-increment the register pointer internally allowing you to read consecutive registers on a device in a single transaction.

@param port The I2C port, 0 for the on-board, 1 for the MXP. @param registerAddress The register to read first in the transaction. @param count The number of bytes to read in the transaction. @param buffer A pointer to the array of bytes to store the data read from the device. @return >= 0 on success or -1 on transfer abort.