18c2ecf20Sopenharmony_ci.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
28c2ecf20Sopenharmony_ci.. c:namespace:: DTV.fe
38c2ecf20Sopenharmony_ci
48c2ecf20Sopenharmony_ci.. _FE_DISHNETWORK_SEND_LEGACY_CMD:
58c2ecf20Sopenharmony_ci
68c2ecf20Sopenharmony_ci******************************
78c2ecf20Sopenharmony_ciFE_DISHNETWORK_SEND_LEGACY_CMD
88c2ecf20Sopenharmony_ci******************************
98c2ecf20Sopenharmony_ci
108c2ecf20Sopenharmony_ciName
118c2ecf20Sopenharmony_ci====
128c2ecf20Sopenharmony_ci
138c2ecf20Sopenharmony_ciFE_DISHNETWORK_SEND_LEGACY_CMD
148c2ecf20Sopenharmony_ci
158c2ecf20Sopenharmony_ciSynopsis
168c2ecf20Sopenharmony_ci========
178c2ecf20Sopenharmony_ci
188c2ecf20Sopenharmony_ci.. c:macro:: FE_DISHNETWORK_SEND_LEGACY_CMD
198c2ecf20Sopenharmony_ci
208c2ecf20Sopenharmony_ci``int ioctl(int fd, FE_DISHNETWORK_SEND_LEGACY_CMD, unsigned long cmd)``
218c2ecf20Sopenharmony_ci
228c2ecf20Sopenharmony_ciArguments
238c2ecf20Sopenharmony_ci=========
248c2ecf20Sopenharmony_ci
258c2ecf20Sopenharmony_ci``fd``
268c2ecf20Sopenharmony_ci    File descriptor returned by :c:func:`open()`.
278c2ecf20Sopenharmony_ci
288c2ecf20Sopenharmony_ci``cmd``
298c2ecf20Sopenharmony_ci    Sends the specified raw cmd to the dish via DISEqC.
308c2ecf20Sopenharmony_ci
318c2ecf20Sopenharmony_ciDescription
328c2ecf20Sopenharmony_ci===========
338c2ecf20Sopenharmony_ci
348c2ecf20Sopenharmony_ci.. warning::
358c2ecf20Sopenharmony_ci   This is a very obscure legacy command, used only at stv0299
368c2ecf20Sopenharmony_ci   driver. Should not be used on newer drivers.
378c2ecf20Sopenharmony_ci
388c2ecf20Sopenharmony_ciIt provides a non-standard method for selecting Diseqc voltage on the
398c2ecf20Sopenharmony_cifrontend, for Dish Network legacy switches.
408c2ecf20Sopenharmony_ci
418c2ecf20Sopenharmony_ciAs support for this ioctl were added in 2004, this means that such
428c2ecf20Sopenharmony_cidishes were already legacy in 2004.
438c2ecf20Sopenharmony_ci
448c2ecf20Sopenharmony_ciReturn Value
458c2ecf20Sopenharmony_ci============
468c2ecf20Sopenharmony_ci
478c2ecf20Sopenharmony_ciOn success 0 is returned.
488c2ecf20Sopenharmony_ci
498c2ecf20Sopenharmony_ciOn error -1 is returned, and the ``errno`` variable is set
508c2ecf20Sopenharmony_ciappropriately.
518c2ecf20Sopenharmony_ci
528c2ecf20Sopenharmony_ciGeneric error codes are described at the
538c2ecf20Sopenharmony_ci:ref:`Generic Error Codes <gen-errors>` chapter.
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