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 second adds a local variable in probe routine and the last one adds trigger support. This patch assumes the patch "iio: set default trig->dev.parent" is applied. Changes since v7: rebase on iio git testing branch. Gwendal Grignou (3): iio: acpi_als: Add timestamp channel iio: acpi_als: Add local variable dev in probe iio: acpi_als: Add trigger support drivers/iio/light/acpi-als.c | 113 +++++++++++++++++++++++------------ 1 file changed, 76 insertions(+), 37 deletions(-) -- 2.31.0.rc2.261.g7f71774620-goog
