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| author | Michael J. Chudobiak <mjc@avtechpulse.com> | 2016-04-25 10:00:44 -0400 |
|---|---|---|
| committer | Michael J. Chudobiak <mjc@avtechpulse.com> | 2016-04-25 10:00:44 -0400 |
| commit | a1df417e74aa6dae7352dc8cbb0ad471af5b7c69 (patch) | |
| tree | c34b2311e37ea31db153c90cb8f4570374d05e78 /linux/Documentation/ABI/testing/sysfs-i2c-bmp085 | |
initial Olimex linux tree from Daniel, originally Feb 3, 2016
Diffstat (limited to 'linux/Documentation/ABI/testing/sysfs-i2c-bmp085')
| -rw-r--r-- | linux/Documentation/ABI/testing/sysfs-i2c-bmp085 | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/linux/Documentation/ABI/testing/sysfs-i2c-bmp085 b/linux/Documentation/ABI/testing/sysfs-i2c-bmp085 new file mode 100644 index 00000000..585962ad --- /dev/null +++ b/linux/Documentation/ABI/testing/sysfs-i2c-bmp085 @@ -0,0 +1,31 @@ +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. |