5c7dd7acc3
repo: https://github.com/T-head-Semi/linux commit: b1313fe517ca3703119dcc99ef3bbf75ab42bcfb Change-Id: I6cbb35294024ea3a66140e311f4bb705fd7fd626
56 lines
1.3 KiB
ReStructuredText
56 lines
1.3 KiB
ReStructuredText
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
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.. c:namespace:: DTV.fe
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.. _FE_SET_FRONTEND_TUNE_MODE:
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*******************************
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ioctl FE_SET_FRONTEND_TUNE_MODE
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*******************************
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Name
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====
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FE_SET_FRONTEND_TUNE_MODE - Allow setting tuner mode flags to the frontend.
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Synopsis
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========
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.. c:macro:: FE_SET_FRONTEND_TUNE_MODE
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``int ioctl(int fd, FE_SET_FRONTEND_TUNE_MODE, unsigned int flags)``
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Arguments
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=========
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``fd``
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File descriptor returned by :c:func:`open()`.
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``flags``
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Valid flags:
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- 0 - normal tune mode
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- ``FE_TUNE_MODE_ONESHOT`` - When set, this flag will disable any
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zigzagging or other "normal" tuning behaviour. Additionally,
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there will be no automatic monitoring of the lock status, and
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hence no frontend events will be generated. If a frontend device
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is closed, this flag will be automatically turned off when the
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device is reopened read-write.
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Description
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===========
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Allow setting tuner mode flags to the frontend, between 0 (normal) or
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``FE_TUNE_MODE_ONESHOT`` mode
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Return Value
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============
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On success 0 is returned.
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On error -1 is returned, and the ``errno`` variable is set
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appropriately.
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Generic error codes are described at the
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:ref:`Generic Error Codes <gen-errors>` chapter.
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