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| author | Jerome Oufella <jerome.oufella@savoirfairelinux.com> | 2011-04-12 15:34:39 -0400 |
|---|---|---|
| committer | Guenter Roeck <guenter.roeck@ericsson.com> | 2011-05-19 08:19:36 -0700 |
| commit | 82c7465b4dd013d19858bfeac084849ae17682c0 (patch) | |
| tree | af6828f4e6cac12153100b30fbe126fe0989e1a8 /Documentation/hwmon | |
| parent | cc15c7ebb424e45ba2c5ceecbe52d025219ee970 (diff) | |
| download | linux-3.10-82c7465b4dd013d19858bfeac084849ae17682c0.tar.gz linux-3.10-82c7465b4dd013d19858bfeac084849ae17682c0.tar.bz2 linux-3.10-82c7465b4dd013d19858bfeac084849ae17682c0.zip | |
hwmon: (sht15) add support for CRC validation
The sht15 sensor allows validating exchanges to and from the device
using a crc8 function. An utility function to reverse a byte has also
been added.
Signed-off-by: Jerome Oufella <jerome.oufella@savoirfairelinux.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Diffstat (limited to 'Documentation/hwmon')
| -rw-r--r-- | Documentation/hwmon/sht15 | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/Documentation/hwmon/sht15 b/Documentation/hwmon/sht15 index d1939b25eb1..02850bdfac1 100644 --- a/Documentation/hwmon/sht15 +++ b/Documentation/hwmon/sht15 @@ -5,6 +5,7 @@ Authors: * Wouter Horre * Jonathan Cameron * Vivien Didelot <vivien.didelot@savoirfairelinux.com> + * Jerome Oufella <jerome.oufella@savoirfairelinux.com> Supported chips: * Sensirion SHT10 @@ -44,11 +45,17 @@ measurement and decrease power consumption, while loosing on precision. Some options may be set directly in the sht15_platform_data structure or via sysfs attributes. -Note: The regulator supply name is set to "vcc". +Notes: + * The regulator supply name is set to "vcc". + * If a CRC validation fails, a soft reset command is sent, which resets + status register to its hardware default value, but the driver will try to + restore the previous device configuration. Platform data ------------- +* checksum: + set it to true to enable CRC validation of the readings (default to false). * no_otp_reload: flag to indicate not to reload from OTP (default to false). * low_resolution: |