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103d9fb907
linux/drivers/iio
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Lars-Peter Clausen 103d9fb907 iio: Add a logarithmic fractional value type 
For ADCs or DACs the denominator for fractional types often is a power of two.
In this case we can use a shift operation instead of the rather expensive 64 bit
division. This patch adds a new fractional type which expects the denominator to
be specified as the log2 of the actual denominator. E.g. for ADCs and DACs this
will usually be the number of significant bits.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-10-19 18:46:51 +01:00
..
accel iio: fix spelling of Accelerometer in Kconfig 2012-10-19 16:19:02 +01:00
adc iio: at91_adc: Use devm_kcalloc to allocate arrays 2012-10-19 18:46:37 +01:00
amplifiers iio: amplifiers: New driver for AD8366 Dual-Digital Variable Gain Amplifier 2012-05-14 13:15:39 -07:00
common iio: hid-sensors: Prevent crash during hot-unplug 2012-09-22 10:07:34 +01:00
dac iio: Don't compare boolean values to true/false 2012-10-19 16:26:24 +01:00
frequency iio: frequency: ADF4350: Fix potential reference div factor overflow. 2012-08-16 20:24:33 +01:00
gyro iio: Drop timestamp parameter from buffer store_to callback 2012-09-08 10:14:34 +01:00
light iio: Drop timestamp parameter from buffer store_to callback 2012-09-08 10:14:34 +01:00
magnetometer iio: Drop timestamp parameter from buffer store_to callback 2012-09-08 10:14:34 +01:00
iio_core_trigger.h
iio_core.h
industrialio-buffer.c iio: Use strict_strtouint instead of kstrtoul 2012-10-19 18:46:50 +01:00
industrialio-core.c iio: Add a logarithmic fractional value type 2012-10-19 18:46:51 +01:00
industrialio-event.c iio: Use strict_strtouint instead of kstrtoul 2012-10-19 18:46:50 +01:00
industrialio-trigger.c iio:trigger: Register sysfs file statically 2012-07-08 10:39:58 +01:00
industrialio-triggered-buffer.c iio: Add helper function for initializing triggered buffers 2012-06-18 17:26:09 -07:00
inkern.c iio: Add a logarithmic fractional value type 2012-10-19 18:46:51 +01:00
Kconfig iio: hid-sensors: Added ALS 2012-09-06 19:24:15 +01:00
kfifo_buf.c iio: Drop timestamp parameter from buffer store_to callback 2012-09-08 10:14:34 +01:00
Makefile iio: hid-sensors: Added ALS 2012-09-06 19:24:15 +01:00