1. 24 Feb, 2018 2 commits
    • Quentin Schulz's avatar
      iio: adc: axp20x_adc: remove !! in favor of ternary condition · adc18ba9
      Quentin Schulz authored
      !!'s behaviour isn't that obvious and sparse complained about it, so
      let's replace it with a ternary condition.
      Signed-off-by: default avatarQuentin Schulz <quentin.schulz@bootlin.com>
      Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
      adc18ba9
    • Richard Lai's avatar
      iio: chemical: ccs811: Renamed resistance member in ccs811_reading struct · 4c73b809
      Richard Lai authored
      The resistance member in ccs811_reading struct is an unsigned 16-bit
      integer variable used to store RAW_DATA register bytes read from CCS811.
      It is kind of misleading to name this struct member as resistance.
      
      About the RAW_DATA register bytes, the CCS811 datasheet states that:
      -----
      Two byte read only register which contains the latest readings from the
      sense resistor.
      
      The most significant 6 bits of the Byte 0 contain the value of the current
      through the sensor (0μA to 63μA).
      
      The lower 10 bits contain (as computed from the ADC) the readings of the
      voltage across the sensor with the selected current (1023 = 1.65V)"
      -----
      
      Hence, the RAW_DATA register byte contains information about electric
      current and voltage of the CCS811 sensor. Calling this struct member
      'resistance' is kind of misleading, although both electric current and
      voltage are needed to calculate the electrical resistance of the sensor
      using Ohm's law, V = I x R, in which a new channel type of IIO_RESISTANCE
      may be added to the driver in the future.
      Signed-off-by: default avatarRichard Lai <richard@richardman.com>
      Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
      4c73b809
  2. 23 Feb, 2018 6 commits
  3. 22 Feb, 2018 32 commits