diff options
author | Jerome Oufella <jerome.oufella@savoirfairelinux.com> | 2011-04-12 15:34:39 -0400 |
---|---|---|
committer | Guenter Roeck <guenter.roeck@ericsson.com> | 2011-05-19 11:19:36 -0400 |
commit | 82c7465b4dd013d19858bfeac084849ae17682c0 (patch) | |
tree | af6828f4e6cac12153100b30fbe126fe0989e1a8 /Documentation/hwmon | |
parent | cc15c7ebb424e45ba2c5ceecbe52d025219ee970 (diff) |
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: | |||
5 | * Wouter Horre | 5 | * Wouter Horre |
6 | * Jonathan Cameron | 6 | * Jonathan Cameron |
7 | * Vivien Didelot <vivien.didelot@savoirfairelinux.com> | 7 | * Vivien Didelot <vivien.didelot@savoirfairelinux.com> |
8 | * Jerome Oufella <jerome.oufella@savoirfairelinux.com> | ||
8 | 9 | ||
9 | Supported chips: | 10 | Supported chips: |
10 | * Sensirion SHT10 | 11 | * Sensirion SHT10 |
@@ -44,11 +45,17 @@ measurement and decrease power consumption, while loosing on precision. | |||
44 | Some options may be set directly in the sht15_platform_data structure | 45 | Some options may be set directly in the sht15_platform_data structure |
45 | or via sysfs attributes. | 46 | or via sysfs attributes. |
46 | 47 | ||
47 | Note: The regulator supply name is set to "vcc". | 48 | Notes: |
49 | * The regulator supply name is set to "vcc". | ||
50 | * If a CRC validation fails, a soft reset command is sent, which resets | ||
51 | status register to its hardware default value, but the driver will try to | ||
52 | restore the previous device configuration. | ||
48 | 53 | ||
49 | Platform data | 54 | Platform data |
50 | ------------- | 55 | ------------- |
51 | 56 | ||
57 | * checksum: | ||
58 | set it to true to enable CRC validation of the readings (default to false). | ||
52 | * no_otp_reload: | 59 | * no_otp_reload: |
53 | flag to indicate not to reload from OTP (default to false). | 60 | flag to indicate not to reload from OTP (default to false). |
54 | * low_resolution: | 61 | * low_resolution: |