Documentation/linux_tv/media/dvb/FE_READ_UNCORRECTED_BLOCKS.rst

.. -*- coding: utf-8; mode: rst -*-

.. _FE_READ_UNCORRECTED_BLOCKS:

**************************
FE_READ_UNCORRECTED_BLOCKS
**************************

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.

SYNOPSIS

int ioctl( int fd, int request =
:ref:`FE_READ_UNCORRECTED_BLOCKS <FE_READ_UNCORRECTED_BLOCKS>`,
uint32_t *ublocks);

PARAMETERS



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    -  .. row 1

       -  int fd

       -  File descriptor returned by a previous call to open().

    -  .. row 2

       -  int request

       -  Equals
          :ref:`FE_READ_UNCORRECTED_BLOCKS <FE_READ_UNCORRECTED_BLOCKS>`
          for this command.

    -  .. row 3

       -  uint32_t *ublocks

       -  The total number of uncorrected blocks seen by the driver so far.


RETURN VALUE

On success 0 is returned, on error -1 and the ``errno`` variable is set
appropriately. The generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.


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.. library (https://github.com/return42/sphkerneldoc). The origin XML comes
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