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| author | Donggeun Yoo <donggeunyoo.kernel@gmail.com> | 2026-09-02 00:21:26 +0900 |
|---|---|---|
| committer | Jonathan Cameron <jonathan.cameron@oss.qualcomm.com> | 2026-09-07 02:24:53 +0100 |
| commit | e24328974a88aa8541e94e8bb8dfa2ade1b3c45d (patch) | |
| tree | 43a2533acc955d11f5cb8be1ecba0ab8ba4cbb1e /Documentation/bpf/index.rst | |
| download | linux-stable-e24328974a88aa8541e94e8bb8dfa2ade1b3c45d.tar.gz linux-stable-e24328974a88aa8541e94e8bb8dfa2ade1b3c45d.zip | |
iio: proximity: vl53l0x-i2c: claim direct mode for raw readsgrafted
vl53l0x_read_raw() starts a single-shot ranging measurement and reads
back the result. Once the triggered buffer is enabled the sensor runs in
continuous mode and its data-ready interrupt is routed to the trigger,
so a concurrent in_distance_raw read disturbs the streaming setup and
never gets its completion, returning -ETIMEDOUT.
The original submission claimed direct mode here, but it was dropped
during review because the driver had no buffer support at the time [1].
Continuous (buffered) mode was later added without restoring the
claim [2], reintroducing the conflict.
Reject direct reads while buffered capture is active by claiming direct
mode around the measurement, as the vl53l1x sibling already does.
Fixes: 762186c6e7b1 ("iio: proximity: vl53l0x-i2c: Added continuous mode support")
Link: https://lore.kernel.org/linux-iio/20180911160300.GA9212@himanshu-Vostro-3559/ [1]
Link: https://lore.kernel.org/linux-iio/20240909101508.263085-3-abhashkumarjha123@gmail.com/ [2]
Signed-off-by: Donggeun Yoo <donggeunyoo.kernel@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Jonathan Cameron <jonathan.cameron@oss.qualcomm.com>
Diffstat (limited to 'Documentation/bpf/index.rst')
| -rw-r--r-- | Documentation/bpf/index.rst | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/Documentation/bpf/index.rst b/Documentation/bpf/index.rst new file mode 100644 index 000000000..638a00d42 --- /dev/null +++ b/Documentation/bpf/index.rst @@ -0,0 +1,39 @@ +================= +BPF Documentation +================= + +This directory contains documentation for the BPF (Berkeley Packet +Filter) facility, with a focus on the extended BPF version (eBPF). + +This kernel side documentation is still work in progress. +The Cilium project also maintains a `BPF and XDP Reference Guide`_ +that goes into great technical depth about the BPF Architecture. + +.. toctree:: + :maxdepth: 1 + + verifier + libbpf/index + standardization/index + btf + faq + syscall_api + helpers + kfuncs + cpumasks + fs_kfuncs + programs + maps + bpf_prog_run + classic_vs_extended.rst + bpf_iterators + bpf_licensing + signing + test_debug + clang-notes + linux-notes + other + redirect + +.. Links: +.. _BPF and XDP Reference Guide: https://docs.cilium.io/en/latest/bpf/ |