Changelog v3 -> v4: * patch 'docs: ioctl-number.rst: reserve IIO subsystem ioctl() space' remove 'uapi/' from `uapi/linux/iio/*.h` * patch 'iio: core: register chardev only if needed' add commit comment about potentially breaking userspace ABI with chardev removal * patch 'iio: core: rework iio device group creation' remove NULL re-init in iio_device_unregister_sysfs() ; memory is being free'd * patch 'iio: buffer: group attr count and attr alloc' extend commit comment about the 2 or 1 buffer directores * patch 'iio: core: merge buffer/ & scan_elements/ attributes' fixed static checker complaints - removed unused global - initialize omitted 'ret = -ENOMEM' on error path - made iio_buffer_unregister_legacy_sysfs_groups() static * patch 'iio: buffer: wrap all buffer attributes into iio_dev_attr' - update some omitted unwindings; seems i forgot a few originally this was showing up when trying to read from buffer1 * add patch 'iio: buffer: move __iio_buffer_free_sysfs_and_mask() before alloc func' * patch 'iio: buffer: introduce support for attaching more IIO buffers' - removed 'iio_dev_opaque->attached_buffers = NULL' after kfree() - using 'iio_dev_opaque->attached_buffers_cnt' to check that we have buffers instead of checking 'indio_dev->buffer' * patch 'iio: buffer: add ioctl() to support opening extra buffers for IIO device' - replaced -ENOENT with -ENODEV when buffer index is out of range * add 'iio: core: rename 'dev' -> 'indio_dev' in iio_device_alloc()' * add 'iio: buffer: dmaengine: obtain buffer object from attribute' * add tools/iio patches for new multibuffer logic tools: iio: make iioutils_get_type() private in iio_utils tools: iio: privatize globals and functions in iio_generic_buffer.c file tools: iio: convert iio_generic_buffer to use new IIO buffer API Alexandru Ardelean (17): docs: ioctl-number.rst: reserve IIO subsystem ioctl() space iio: core: register chardev only if needed iio: core-trigger: make iio_device_register_trigger_consumer() an int return iio: core: rework iio device group creation iio: buffer: group attr count and attr alloc iio: core: merge buffer/ & scan_elements/ attributes iio: add reference to iio buffer on iio_dev_attr iio: buffer: wrap all buffer attributes into iio_dev_attr iio: buffer: dmaengine: obtain buffer object from attribute iio: core: wrap iio device & buffer into struct for character devices iio: buffer: move __iio_buffer_free_sysfs_and_mask() before alloc iio: buffer: introduce support for attaching more IIO buffers iio: buffer: add ioctl() to support opening extra buffers for IIO device iio: core: rename 'dev' -> 'indio_dev' in iio_device_alloc() tools: iio: make iioutils_get_type() private in iio_utils tools: iio: privatize globals and functions in iio_generic_buffer.c file tools: iio: convert iio_generic_buffer to use new IIO buffer API .../userspace-api/ioctl/ioctl-number.rst | 1 + .../buffer/industrialio-buffer-dmaengine.c | 3 +- drivers/iio/iio_core.h | 24 +- drivers/iio/iio_core_trigger.h | 4 +- drivers/iio/industrialio-buffer.c | 483 ++++++++++++++---- drivers/iio/industrialio-core.c | 108 +++- drivers/iio/industrialio-event.c | 6 +- drivers/iio/industrialio-trigger.c | 6 +- include/linux/iio/buffer.h | 4 +- include/linux/iio/buffer_impl.h | 21 +- include/linux/iio/iio-opaque.h | 14 + include/linux/iio/iio.h | 5 - include/linux/iio/sysfs.h | 3 + include/uapi/linux/iio/buffer.h | 10 + tools/iio/Makefile | 1 + tools/iio/iio_generic_buffer.c | 133 +++-- tools/iio/iio_utils.c | 18 +- tools/iio/iio_utils.h | 8 +- 18 files changed, 658 insertions(+), 194 deletions(-) create mode 100644 include/uapi/linux/iio/buffer.h -- 2.17.1