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Documentation / ABI / testing / sysfs-i2c-bmp085


Based on kernel version 4.8. Page generated on 2016-10-06 23:09 EST.

1	What:		/sys/bus/i2c/devices/<busnum>-<devaddr>/pressure0_input
2	Date:		June 2010
3	Contact:	Christoph Mair <christoph.mair@gmail.com>
4	Description:	Start a pressure measurement and read the result. Values
5			represent the ambient air pressure in pascal (0.01 millibar).
6	
7			Reading: returns the current air pressure.
8	
9	
10	What:		/sys/bus/i2c/devices/<busnum>-<devaddr>/temp0_input
11	Date:		June 2010
12	Contact:	Christoph Mair <christoph.mair@gmail.com>
13	Description:	Measure the ambient temperature. The returned value represents
14			the ambient temperature in units of 0.1 degree celsius.
15	
16			Reading: returns the current temperature.
17	
18	
19	What:		/sys/bus/i2c/devices/<busnum>-<devaddr>/oversampling
20	Date:		June 2010
21	Contact:	Christoph Mair <christoph.mair@gmail.com>
22	Description:	Tell the bmp085 to use more samples to calculate a pressure
23			value. When writing to this file the chip will use 2^x samples
24			to calculate the next pressure value with x being the value
25			written. Using this feature will decrease RMS noise and
26			increase the measurement time.
27	
28			Reading: returns the current oversampling setting.
29	
30			Writing: sets a new oversampling setting.
31			Accepted values: 0..3.
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