Some devices (chromebooks) present the ACPI ALS device but do not have ability to notify when a new sample is present. Add support for software trigger (hrtimer/sysfs-trigger) to allow retrieving samples using iio buffers. The first path fully adds timestamp channel, the next one adds trigger support. This patch assumes the patch "iio: set default trig->dev.parent" is applied. Fix a pointer error in v3. Gwendal Grignou (2): iio: acpi_als: Add timestamp channel iio: acpi_als: Add trigger support drivers/iio/light/acpi-als.c | 103 ++++++++++++++++++++++++----------- 1 file changed, 72 insertions(+), 31 deletions(-) -- 2.29.2.576.ga3fc446d84-goog
