1.. -*- coding: utf-8; mode: rst -*- 2 3.. _FE_READ_UNCORRECTED_BLOCKS: 4 5************************** 6FE_READ_UNCORRECTED_BLOCKS 7************************** 8 9Name 10==== 11 12FE_READ_UNCORRECTED_BLOCKS 13 14.. attention:: This ioctl is deprecated. 15 16Synopsis 17======== 18 19.. c:function:: int ioctl( int fd, FE_READ_UNCORRECTED_BLOCKS, uint32_t *ublocks) 20 :name: FE_READ_UNCORRECTED_BLOCKS 21 22 23Arguments 24========= 25 26``fd`` 27 File descriptor returned by :c:func:`open() <dvb-fe-open>`. 28 29``ublocks`` 30 The total number of uncorrected blocks seen by the driver so far. 31 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 42 43Return Value 44============ 45 46On success 0 is returned. 47 48On error -1 is returned, and the ``errno`` variable is set 49appropriately. 50 51Generic error codes are described at the 52:ref:`Generic Error Codes <gen-errors>` chapter. 53