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This is a combination of 2 commits.

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aio: mraa_aio_read (v1.0.0) can now return -1, treat that in sensors using it

Adds alot of exceptions if the aio read goes wrong

Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
Signed-off-by: Noel Eck <noel.eck@intel.com>
This commit is contained in:
Brendan Le Foll
2016-04-25 14:29:41 +01:00
committed by Noel Eck
parent f6816797bb
commit e51c5f3018
17 changed files with 64 additions and 11 deletions
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12
src/adc121c021/adc121c021.cxx
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@ -79,12 +79,20 @@ mraa_result_t ADC121C021::writeWord(uint8_t reg, uint16_t word)
uint8_t ADC121C021::readByte(uint8_t reg)
{
return mraa_i2c_read_byte_data(m_i2c, reg);
int val = mraa_i2c_read_byte_data(m_i2c, reg);
if (val != -1) {
return (uint8_t) val;
}
return 0;
}
uint16_t ADC121C021::readWord(uint8_t reg)
{
uint16_t val = mraa_i2c_read_word_data(m_i2c, reg);
int x = mraa_i2c_read_word_data(m_i2c, reg);
if (x == -1) {
return 0;
}
uint16_t val = (uint16_t) x;
uint8_t b1;
// The value returned is in the wrong byte order, so we need to swap them