cp2112_write_read_req
count = cp2112_write_read_req(buf, addr, read_length,
count = cp2112_write_read_req(buf, addr, read_length,
count = cp2112_write_read_req(buf, addr, read_length, command,
count = cp2112_write_read_req(buf, addr, read_length,
count = cp2112_write_read_req(buf, addr,
count = cp2112_write_read_req(buf, addr, I2C_SMBUS_BLOCK_MAX,