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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /Documentation/userspace-api/media/dvb/fe-read-uncorrected-blocks.rst | |
parent | Initial commit. (diff) | |
download | linux-430c2fc249ea5c0536abd21c23382884005c9093.tar.xz linux-430c2fc249ea5c0536abd21c23382884005c9093.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'Documentation/userspace-api/media/dvb/fe-read-uncorrected-blocks.rst')
-rw-r--r-- | Documentation/userspace-api/media/dvb/fe-read-uncorrected-blocks.rst | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/Documentation/userspace-api/media/dvb/fe-read-uncorrected-blocks.rst b/Documentation/userspace-api/media/dvb/fe-read-uncorrected-blocks.rst new file mode 100644 index 000000000..653cd99a6 --- /dev/null +++ b/Documentation/userspace-api/media/dvb/fe-read-uncorrected-blocks.rst @@ -0,0 +1,51 @@ +.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later +.. c:namespace:: DTV.fe + +.. _FE_READ_UNCORRECTED_BLOCKS: + +************************** +FE_READ_UNCORRECTED_BLOCKS +************************** + +Name +==== + +FE_READ_UNCORRECTED_BLOCKS + +.. attention:: This ioctl is deprecated. + +Synopsis +======== + +.. c:macro:: FE_READ_UNCORRECTED_BLOCKS + +``int ioctl(int fd, FE_READ_UNCORRECTED_BLOCKS, uint32_t *ublocks)`` + +Arguments +========= + +``fd`` + File descriptor returned by :c:func:`open()`. + +``ublocks`` + The total number of uncorrected blocks seen by the driver so far. + +Description +=========== + +This ioctl call returns the number of uncorrected blocks detected by the +device driver during its lifetime. For meaningful measurements, the +increment in block count during a specific time interval should be +calculated. For this command, read-only access to the device is +sufficient. + +Return Value +============ + +On success 0 is returned. + +On error -1 is returned, and the ``errno`` variable is set +appropriately. + +Generic error codes are described at the +:ref:`Generic Error Codes <gen-errors>` chapter. |