C++ (Cpp) FT4222_I2CMaster_Readの例

コード例 #1

ファイル: ftdi_ft4222.c プロジェクト: nioinnovation/mraa

static int
mraa_ftdi_ft4222_i2c_read_internal(FT_HANDLE handle, uint8_t addr, uint8_t* data, int length)
{
    uint16 bytesRead = 0;
    uint8 controllerStatus;
    // syslog(LOG_NOTICE, "FT4222_I2CMaster_Read(%#02X, %#02X)", addr, length);
    FT4222_STATUS ft4222Status = FT4222_I2CMaster_Read(handle, addr, data, length, &bytesRead);
    ft4222Status = FT4222_I2CMaster_GetStatus(ftHandle, &controllerStatus);
    if (FT4222_OK != ft4222Status || I2CM_ERROR(controllerStatus)) {
        syslog(LOG_ERR, "FT4222_I2CMaster_Read failed (error %d)\n", (int) ft4222Status);
        return 0;
    }
    return bytesRead;
}

コード例 #2

ファイル: ftdi_ft4222.c プロジェクト: apalalau/mraa

static int
mraa_ftdi_ft4222_i2c_read_internal(FT_HANDLE handle, uint8_t addr, uint8_t* data, int length)
{
    uint16 bytesRead = 0;
    uint8 controllerStatus;
    // syslog(LOG_NOTICE, "FT4222_I2CMaster_Read(%#02X, %#02X)", addr, length);
    mraa_ftdi_ft4222_sleep_ms(1);
    pthread_mutex_lock(&ft4222_lock);
    FT4222_STATUS ft4222Status = FT4222_I2CMaster_Read(handle, addr, data, length, &bytesRead);
    ft4222Status = FT4222_I2CMaster_GetStatus(ftHandleI2c, &controllerStatus);
    if (FT4222_OK != ft4222Status || I2CM_ERROR(controllerStatus)) {
        syslog(LOG_ERR, "FT4222_I2CMaster_Read failed for address %#02x\n", addr);
        FT4222_I2CMaster_Reset(handle);
        pthread_mutex_unlock(&ft4222_lock);
        return 0;
    }
    // syslog(LOG_NOTICE, "FT4222_I2CMaster_Read completed");
    pthread_mutex_unlock(&ft4222_lock);
    return bytesRead;
}