2 * Copyright (c) 2018 Samsung Electronics Co., Ltd.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 #include "peripheral_interface_adc.h"
19 int peripheral_interface_adc_read(peripheral_adc_h adc, uint32_t *value)
23 char adc_buf[ADC_BUFFER_MAX] = {0, };
25 ret = pread(adc->fd, &adc_buf, ADC_BUFFER_MAX, 0);
26 CHECK_ERROR(ret <= 0);
28 ret = sscanf(adc_buf, "%d", &tmp_val);
32 _E("Error: unable to read adc value \n");
33 return PERIPHERAL_ERROR_IO_ERROR;
36 return PERIPHERAL_ERROR_NONE;
39 void peripheral_interface_adc_close(peripheral_adc_h adc)