m2m_hw_i2c_read

M2M_T_HW_I2C_RESULT m2m_hw_i2c_read(UINT16 address, UINT8 reg_addr, UINT8 *

buffer, UINT8 len)

Description: the function reads data from an I2C device.

Parameters:

address:       address of the I2C device, with the LSB used as read\write command. It does not

matter if the LSB is set to 0 or to 1. 10 bits address is supported

reg_addr:      register address where the first byte is read

buffer:                   pointer to the buffer that will be filled with the data read from I2C device (in

hexadecimal format)

len:              number of bytes to read, see M2M_HW_I2C_MAX_BUF_LEN.

Return value:
         refer to M2M_T_HW_I2C_RESULT enum

Output data:
         on success: "buffer" points to the buffer filled with the data read from the I2C device.

Example of "address" parameter format:

Suppose that the I2C device has the address 7 bits long, for example: 0x0F. The I2C device address must be shifted to left by one bit as shown below. It is up to the function to set the bit 0 in accordance with the command.