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Diffstat (limited to 'Documentation/userspace-api/media/dvb/fe-diseqc-reset-overload.rst')
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diff --git a/Documentation/userspace-api/media/dvb/fe-diseqc-reset-overload.rst b/Documentation/userspace-api/media/dvb/fe-diseqc-reset-overload.rst new file mode 100644 index 000000000..d36f7d115 --- /dev/null +++ b/Documentation/userspace-api/media/dvb/fe-diseqc-reset-overload.rst @@ -0,0 +1,45 @@ +.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later +.. c:namespace:: DTV.fe + +.. _FE_DISEQC_RESET_OVERLOAD: + +****************************** +ioctl FE_DISEQC_RESET_OVERLOAD +****************************** + +Name +==== + +FE_DISEQC_RESET_OVERLOAD - Restores the power to the antenna subsystem, if it was powered off due - to power overload. + +Synopsis +======== + +.. c:macro:: FE_DISEQC_RESET_OVERLOAD + +``int ioctl(int fd, FE_DISEQC_RESET_OVERLOAD, NULL)`` + +Arguments +========= + +``fd`` + File descriptor returned by :c:func:`open()`. + +Description +=========== + +If the bus has been automatically powered off due to power overload, +this ioctl call restores the power to the bus. The call requires +read/write access to the device. This call has no effect if the device +is manually powered off. Not all Digital TV adapters support this ioctl. + +Return Value +============ + +On success 0 is returned. + +On error -1 is returned, and the ``errno`` variable is set +appropriately. + +Generic error codes are described at the +:ref:`Generic Error Codes <gen-errors>` chapter. |