mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-16 07:35:14 +00:00
60c2820d0f
The name of the subsystem is "media", and not "linux_tv". Also, as we plan to add other stuff there in the future, let's rename also the media uAPI book to media_uapi, to make it clearer. No functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
65 lines
1.2 KiB
ReStructuredText
65 lines
1.2 KiB
ReStructuredText
.. -*- coding: utf-8; mode: rst -*-
|
|
|
|
.. _FE_READ_UNCORRECTED_BLOCKS:
|
|
|
|
**************************
|
|
FE_READ_UNCORRECTED_BLOCKS
|
|
**************************
|
|
|
|
Name
|
|
====
|
|
|
|
FE_READ_UNCORRECTED_BLOCKS
|
|
|
|
|
|
Synopsis
|
|
========
|
|
|
|
.. cpp:function:: int ioctl( int fd, int request =FE_READ_UNCORRECTED_BLOCKS, uint32_t *ublocks)
|
|
|
|
|
|
Arguments
|
|
=========
|
|
|
|
.. flat-table::
|
|
:header-rows: 0
|
|
:stub-columns: 0
|
|
|
|
|
|
- .. row 1
|
|
|
|
- int fd
|
|
|
|
- File descriptor returned by a previous call to open().
|
|
|
|
- .. row 2
|
|
|
|
- int request
|
|
|
|
- Equals
|
|
:ref:`FE_READ_UNCORRECTED_BLOCKS`
|
|
for this command.
|
|
|
|
- .. row 3
|
|
|
|
- uint32_t \*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 and the ``errno`` variable is set
|
|
appropriately. The generic error codes are described at the
|
|
:ref:`Generic Error Codes <gen-errors>` chapter.
|