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path: root/drivers/iio/light
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2012-09-08iio: Drop timestamp parameter from buffer store_to callbackLars-Peter Clausen
Drop timestamp parameter from buffer store_to callback and subsequently from iio_push_to_buffer. The timestamp parameter is unused and it seems likely that it will stay unused in the future, so it should be safe to remove it. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-09-07staging:iio: hid-sensors Use iio_push_to_bufferJonathan Cameron
Consistently use iio_push_to_buffer instead of manually calling the buffers store_to callback. These crossed with Lars-Peter's patch set doing every other case. Signed-off-by: Jonathan Cameron <jic23@kernel.org> Acked-by: srinivas pandruvada <srinivas.pandruvada@intel.com>
2012-09-06iio: hid-sensors: Added ALSsrinivas pandruvada
Added usage id processing for ALS. This uses IIO interfaces for triggered buffer to present data to user mode.This uses HID sensor framework for registering callback events from the sensor hub. Signed-off-by: srinivas pandruvada <srinivas.pandruvada@intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-08-16iio: lm3533-als: Fix build warningsAxel Lin
Fix below build warnings: CC [M] drivers/iio/light/lm3533-als.o drivers/iio/light/lm3533-als.c:667:8: warning: initialization from incompatible pointer type [enabled by default] drivers/iio/light/lm3533-als.c:667:8: warning: (near initialization for 'dev_attr_in_illuminance0_thresh_either_en.show') [enabled by default] drivers/iio/light/lm3533-als.c:667:8: warning: initialization from incompatible pointer type [enabled by default] drivers/iio/light/lm3533-als.c:667:8: warning: (near initialization for 'dev_attr_in_illuminance0_thresh_either_en.store') [enabled by default] Signed-off-by: Axel Lin <axel.lin@gmail.com>
2012-08-16iio/adjd_s311: Fix potential memory leak in adjd_s311_update_scan_mode()Alexey Khoroshilov
Do not leak memory by updating pointer with potentially NULL realloc return value. There is no need to preserve data in the buffer, so replace krealloc() by kfree()-kmalloc() pair. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Acked-by: Peter Meerwald <pmeerw@pmeerw.net> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-07-15iio: fix pointer cast warningPeter Meerwald
fix compile warning reported by Fengguang Wu: drivers/iio/light/adjd_s311.c: In function 'adjd_s311_trigger_handler': drivers/iio/light/adjd_s311.c:188:12: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] drivers/iio/light/adjd_s311.c:188:4: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 185 } 186 187 if (indio_dev->scan_timestamp) > 188 *(s64 *)((phys_addr_t)data->buffer + ALIGN(len, sizeof(s64))) 189 = time_ns; 190 iio_push_to_buffer(buffer, (u8 *)data->buffer, time_ns); 191 Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Reported-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-07-12iio: add adjd_s311 I2C digital color sensor driverPeter Meerwald
sensor has 4 channels (10-bit each, R/G/B and clear), sensitivity and gain is controlled in the driver by ext_info integration_time and CHAN_INFO_HARDWAREGAIN driver supports triggered buffer and IIO_CHAN_INFO_RAW to get the sensor data v5: address comments by Jonathan Cameron * use macro for channel declaration * get timestamp right before measurement * cleanups v4: address comments by Lars-Peter Clausen * make sure trigger handler is exited with iio_trigger_notify_done() and IRQ_HANDLED * kfree()/kalloc() -> krealloc() v3: * fix warnings v2: address comments by Lars-Peter Clausen * buffer allocation now in update_scan_mode instead of in trigger handler * simplify trigger code (assume active_scan_mask is not empty, use for_each_set_bit, use iio_push_to_buffer) * reorder entry in Makefile and Kconfig * fix remove Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-06-20iio: add vcnl4000 combined ALS and proximity sensorPeter Meerwald
minimal driver, no IR current control and proximity/event handling yet v5: * checkpatch warnings * increase msleep() to 20 ms when waiting for data ready as measurement/conversion can take up to 100 ms, 1 ms is too short v4 (address comments by Jonathan Cameron) * remove SENSORS_ prefix in Kconfig * change from IIO_INTENSITY to IIO_LIGHT * move from staging v3 (address comments by Shubhrajyoti Datta) * cleanup Kconfig entry * call I2C read/write functions directly v2 (address comments by Lars-Peter Clausen and Jonathan Cameron) * unify code for reading PS and AL data into parameterized _measure() function * limit wait for data to become ready within 20 tries * drop IIO_LIGHT channel, add SCALE to IIO_INTENSITY * drop extra string arguments used for logging purpose only Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-06-04iio: add LM3533 ambient-light-sensor driverJohan Hovold
Add sub-driver for the ambient-light-sensor interface on National Semiconductor / TI LM3533 lighting power chips. The sensor interface can be used to control the LEDs and backlights of the chip through defining five light zones and three sets of corresponding output-current values. The driver provides raw and mean adc readings along with the current light zone through sysfs. A threshold event can be generated on zone changes. The ALS-control output values can be set per zone for the three current output channels. Signed-off-by: Johan Hovold <jhovold@gmail.com> Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>