audio-get-capabilities.rst (990B)
1.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later 2.. c:namespace:: DTV.audio 3 4.. _AUDIO_GET_CAPABILITIES: 5 6====================== 7AUDIO_GET_CAPABILITIES 8====================== 9 10Name 11---- 12 13AUDIO_GET_CAPABILITIES 14 15.. attention:: This ioctl is deprecated 16 17Synopsis 18-------- 19 20.. c:macro:: AUDIO_GET_CAPABILITIES 21 22``int ioctl(int fd, AUDIO_GET_CAPABILITIES, unsigned int *cap)`` 23 24Arguments 25--------- 26 27.. flat-table:: 28 :header-rows: 0 29 :stub-columns: 0 30 31 - 32 33 - int fd 34 35 - File descriptor returned by a previous call to open(). 36 37 - 38 39 - unsigned int \*cap 40 41 - Returns a bit array of supported sound formats. 42 43Description 44----------- 45 46This ioctl call asks the Audio Device to tell us about the decoding 47capabilities of the audio hardware. 48 49Return Value 50------------ 51 52On success 0 is returned, on error -1 and the ``errno`` variable is set 53appropriately. The generic error codes are described at the 54:ref:`Generic Error Codes <gen-errors>` chapter.