core/java/android/hardware/II2cManager.aidl

/*
 * Copyright (C) 2013 Google, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package android.hardware;

import android.hardware.I2cTransaction;

/**
 * For platform internal use only. App developers: see I2cManager.java.
 * @hide */
interface II2cManager
{
    /* Returns names of all available I2C buses. */
    String[] getI2cBuses();

    /* Perform transactions on the I2C bus.
     *
     * @param name I2C bus to perform transactions on.
     * @param address I2C 7-bit address to perform transactions with,
     *                in bottom 7 bits.
     * @param txns Transactions to handle (input/output to perform).
     * @return 0 on success, negative on error.
     */
    int performTransactions(String name, int address, inout I2cTransaction[] txns);
}