| What: /sys/bus/i2c/devices/<busnum>-<devaddr>/pressure0_input |
| Date: June 2010 |
| Contact: Christoph Mair <christoph.mair@gmail.com> |
| Description: Start a pressure measurement and read the result. Values |
| represent the ambient air pressure in pascal (0.01 millibar). |
| |
| Reading: returns the current air pressure. |
| |
| |
| What: /sys/bus/i2c/devices/<busnum>-<devaddr>/temp0_input |
| Date: June 2010 |
| Contact: Christoph Mair <christoph.mair@gmail.com> |
| Description: Measure the ambient temperature. The returned value represents |
| the ambient temperature in units of 0.1 degree celsius. |
| |
| Reading: returns the current temperature. |
| |
| |
| What: /sys/bus/i2c/devices/<busnum>-<devaddr>/oversampling |
| Date: June 2010 |
| Contact: Christoph Mair <christoph.mair@gmail.com> |
| Description: Tell the bmp085 to use more samples to calculate a pressure |
| value. When writing to this file the chip will use 2^x samples |
| to calculate the next pressure value with x being the value |
| written. Using this feature will decrease RMS noise and |
| increase the measurement time. |
| |
| Reading: returns the current oversampling setting. |
| |
| Writing: sets a new oversampling setting. |
| Accepted values: 0..3. |