1.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later 2.. c:namespace:: DTV.fe 3 4.. _FE_READ_UNCORRECTED_BLOCKS: 5 6************************** 7FE_READ_UNCORRECTED_BLOCKS 8************************** 9 10Name 11==== 12 13FE_READ_UNCORRECTED_BLOCKS 14 15.. attention:: This ioctl is deprecated. 16 17Synopsis 18======== 19 20.. c:macro:: FE_READ_UNCORRECTED_BLOCKS 21 22``int ioctl(int fd, FE_READ_UNCORRECTED_BLOCKS, uint32_t *ublocks)`` 23 24Arguments 25========= 26 27``fd`` 28 File descriptor returned by :c:func:`open()`. 29 30``ublocks`` 31 The total number of uncorrected blocks seen by the driver so far. 32 33Description 34=========== 35 36This ioctl call returns the number of uncorrected blocks detected by the 37device driver during its lifetime. For meaningful measurements, the 38increment in block count during a specific time interval should be 39calculated. For this command, read-only access to the device is 40sufficient. 41 42Return Value 43============ 44 45On success 0 is returned. 46 47On error -1 is returned, and the ``errno`` variable is set 48appropriately. 49 50Generic error codes are described at the 51:ref:`Generic Error Codes <gen-errors>` chapter. 52