2016-02-01 0:18 GMT+09:00 Akinobu Mita <akinobu.mita@xxxxxxxxx>:
>>> +static int adc0831_adc_conversion(struct adc083x *adc)
>>> +{
>>> + struct spi_device *spi = adc->spi;
>>> + int ret;
>>> +
>>> + ret = spi_read(spi, &adc->rx_buf, 2);
>>> + if (ret)
>>> + return ret;
>>> +
>>> + return (adc->rx_buf[0] << 2) | (adc->rx_buf[1] >> 6);
>>> +}
I tested with ADC0831 and found that the last line should be:
/*
* Skip TRI-STATE and a leading zero
*/
return (adc->rx_buf[0] << 2 & 0xff) | (adc->rx_buf[1] >> 6);
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