Continuing discussion in thread "iio: make blocking read wait for data", here is another version of the patchset. Waking the pollqueue only when needed is more difficult than we though because you have to take into account both the watermark and the amount of data currently requested by read(). Changelog: v3: - Make timeout an inactivity timeout - Add Documentation - Issue wake_up on buffer disable v2: thanks to Lars-Peter Clausen and Jonathan Cameron - Avoid breaking default ABI - Add watermark and timeout properties to buffers Josselin Costanzi (2): iio: staging: sca3000: hide stufftoread logic iio: add watermark logic to iio read and poll Documentation/ABI/testing/sysfs-bus-iio | 21 ++++ drivers/iio/industrialio-buffer.c | 193 +++++++++++++++++++++++++++---- drivers/iio/kfifo_buf.c | 15 +-- drivers/staging/iio/accel/sca3000_ring.c | 6 + include/linux/iio/buffer.h | 48 +++++++- 5 files changed, 249 insertions(+), 34 deletions(-) -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
