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Subject[PATCH 1/2] Add ABI documentation for the bmp085 digital pressure sensor.
Date
Signed-off-by: Christoph Mair <christoph.mair@gmail.com>
---
Documentation/ABI/testing/sysfs-i2c-bmp085 | 31 ++++++++++++++++++++++++++++
1 files changed, 31 insertions(+), 0 deletions(-)
create mode 100644 Documentation/ABI/testing/sysfs-i2c-bmp085

diff --git a/Documentation/ABI/testing/sysfs-i2c-bmp085 b/Documentation/ABI/testing/sysfs-i2c-bmp085
new file mode 100644
index 0000000..585962a
--- /dev/null
+++ b/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.
--
1.7.1


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