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iio:common: Removed stuff macros, added num_data_channels on st_sensors struct and added support on one-shot sysfs reads to 3 byte channel

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This patch introduce num_data_channels variable on st_sensors struct
to manage different type of channels (size or number) in
st_sensors_get_buffer_element function.
Removed ST_SENSORS_NUMBER_DATA_CHANNELS and ST_SENSORS_BYTE_FOR_CHANNEL
and used struct iio_chan_spec const *ch to catch data.
Added 3 byte channel data support on one-shot reads.

Signed-off-by: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Denis CIOCCA 2013-06-03 15:58:00 +01:00 • committed by Jonathan Cameron
parent 762011d619
commit 607a568ab6
6 changed files with 75 additions and 33 deletions
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4
include/linux/iio/common/st_sensors.h
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@ -24,9 +24,7 @@
#define ST_SENSORS_FULLSCALE_AVL_MAX 10
#define ST_SENSORS_NUMBER_ALL_CHANNELS 4
#define ST_SENSORS_NUMBER_DATA_CHANNELS 3
#define ST_SENSORS_ENABLE_ALL_AXIS 0x07
#define ST_SENSORS_BYTE_FOR_CHANNEL 2
#define ST_SENSORS_SCAN_X 0
#define ST_SENSORS_SCAN_Y 1
#define ST_SENSORS_SCAN_Z 2
@ -202,6 +200,7 @@ struct st_sensors {
* @multiread_bit: Use or not particular bit for [I2C/SPI] multiread.
* @buffer_data: Data used by buffer part.
* @odr: Output data rate of the sensor [Hz].
* num_data_channels: Number of data channels used in buffer.
* @get_irq_data_ready: Function to get the IRQ used for data ready signal.
* @tf: Transfer function structure used by I/O operations.
* @tb: Transfer buffers and mutex used by I/O operations.
@ -218,6 +217,7 @@ struct st_sensor_data {
char *buffer_data;
unsigned int odr;
unsigned int num_data_channels;
unsigned int (*get_irq_data_ready) (struct iio_dev *indio_dev);