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