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linux-next/drivers/iio
Alison Schofield 0d9dcf8523 iio: humidity: hdc100x: fix sensor data reads of temp and humidity
Replace the i2c_smbus_read_byte commmands used to retrieve the sensor
data with an i2c_master_recv command.

The smbus read byte method fails because the device does not expect a
stop condition after sending the first byte. When we issue the second
read, we are getting the first byte again. Net effect is that of the 14
bits used for the measurement, the 8 most significant bits are correct,
the lower 6 are not.

None of the smbus read protocols follow the pattern this device requires
(S Addr Rd [A] Data [A] Data NA P), hence the switch to an i2c receive
transaction.

Applicable from original introduction of this driver, but will require
backporting due to churn in the code.

Signed-off-by: Alison Schofield <amsfield22@gmail.com>
Cc: Daniel Baluta <daniel.baluta@gmail.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-08-15 17:01:53 +01:00
..
accel iio: add Kconfig selects needed for triggered buffer compiles 2016-08-15 15:42:04 +01:00
adc iio: ad799x: Fix buffered capture for ad7991/ad7995/ad7999 2016-08-15 15:39:14 +01:00
amplifiers spi: Updates for v4.4 2015-11-05 13:15:12 -08:00
buffer iio: buffer-dma: Use ARRAY_SIZE in for loop range 2016-06-27 21:06:40 +01:00
chemical iio:core: timestamping clock selection support 2016-06-30 19:41:38 +01:00
common iio:st_sensors: align on storagebits boundaries 2016-07-04 18:07:45 +01:00
dac iio: stx104: Unregister IIO device on remove callback 2016-08-15 15:39:32 +01:00
dummy iio:core: timestamping clock selection support 2016-06-30 19:41:38 +01:00
frequency iio: frequency: ad9523: use unsigned int rather then bare unsigned 2016-04-17 10:31:03 +01:00
gyro iio: bmg160: add callbacks for the filter frequency 2016-07-03 12:39:55 +01:00
health First round of IIO new device support, features and cleanups for the 4.8 cycle. 2016-06-09 09:15:58 -07:00
humidity iio: humidity: hdc100x: fix sensor data reads of temp and humidity 2016-08-15 17:01:53 +01:00
imu Third set of IIO new device support, features and cleanups for the 4.8 cycle. 2016-07-14 12:05:29 +09:00
light iio: add Kconfig selects needed for triggered buffer compiles 2016-08-15 15:42:04 +01:00
magnetometer iio: magn: ak8975: deploy runtime and system PM 2016-06-30 20:40:16 +01:00
orientation
potentiometer iio: potentiometer: Fix typo in Kconfig 2016-07-03 12:40:01 +01:00
pressure iio: pressure: bmp280: fix runtime suspend/resume crash 2016-08-15 15:46:06 +01:00
proximity iio: proximity: as3935: set up buffer timestamps for non-zero values 2016-08-15 15:39:27 +01:00
temperature iio: Export I2C module alias information 2016-05-21 20:08:14 +01:00
trigger iio:trigger: Experimental kthread tight loop trigger (thread only) 2016-06-03 13:18:44 +01:00
iio_core_trigger.h
iio_core.h iio:core: timestamping clock selection support 2016-06-30 19:41:38 +01:00
industrialio-buffer.c iio: fix config watermark initial value 2016-03-28 11:00:38 +01:00
industrialio-configfs.c iio:configfs: Introduce iio/configfs.h to provide a location for the configfs_subsystem 2015-12-05 16:25:30 +00:00
industrialio-core.c iio:core: timestamping clock selection support 2016-06-30 19:41:38 +01:00
industrialio-event.c iio:core: timestamping clock selection support 2016-06-30 19:41:38 +01:00
industrialio-sw-device.c iio: Add support for creating IIO devices via configfs 2016-05-04 11:43:54 +01:00
industrialio-sw-trigger.c iio: core: fix ptr_ret.cocci warnings 2016-01-20 17:09:18 -08:00
industrialio-trigger.c iio:core: timestamping clock selection support 2016-06-30 19:41:38 +01:00
industrialio-triggered-event.c
inkern.c iio: core: Add devm_ APIs for iio_channel_{get,release}_all 2016-04-19 19:58:15 +01:00
Kconfig iio: Add support for creating IIO devices via configfs 2016-05-04 11:43:54 +01:00
Makefile iio: Add support for creating IIO devices via configfs 2016-05-04 11:43:54 +01:00