18c2ecf20Sopenharmony_ci.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later 28c2ecf20Sopenharmony_ci.. c:namespace:: DTV.ca 38c2ecf20Sopenharmony_ci 48c2ecf20Sopenharmony_ci.. _CA_GET_CAP: 58c2ecf20Sopenharmony_ci 68c2ecf20Sopenharmony_ci========== 78c2ecf20Sopenharmony_ciCA_GET_CAP 88c2ecf20Sopenharmony_ci========== 98c2ecf20Sopenharmony_ci 108c2ecf20Sopenharmony_ciName 118c2ecf20Sopenharmony_ci---- 128c2ecf20Sopenharmony_ci 138c2ecf20Sopenharmony_ciCA_GET_CAP 148c2ecf20Sopenharmony_ci 158c2ecf20Sopenharmony_ciSynopsis 168c2ecf20Sopenharmony_ci-------- 178c2ecf20Sopenharmony_ci 188c2ecf20Sopenharmony_ci.. c:macro:: CA_GET_CAP 198c2ecf20Sopenharmony_ci 208c2ecf20Sopenharmony_ci``int ioctl(fd, CA_GET_CAP, struct ca_caps *caps)`` 218c2ecf20Sopenharmony_ci 228c2ecf20Sopenharmony_ciArguments 238c2ecf20Sopenharmony_ci--------- 248c2ecf20Sopenharmony_ci 258c2ecf20Sopenharmony_ci``fd`` 268c2ecf20Sopenharmony_ci File descriptor returned by a previous call to :c:func:`open()`. 278c2ecf20Sopenharmony_ci 288c2ecf20Sopenharmony_ci``caps`` 298c2ecf20Sopenharmony_ci Pointer to struct :c:type:`ca_caps`. 308c2ecf20Sopenharmony_ci 318c2ecf20Sopenharmony_ciDescription 328c2ecf20Sopenharmony_ci----------- 338c2ecf20Sopenharmony_ci 348c2ecf20Sopenharmony_ciQueries the Kernel for information about the available CA and descrambler 358c2ecf20Sopenharmony_cislots, and their types. 368c2ecf20Sopenharmony_ci 378c2ecf20Sopenharmony_ciReturn Value 388c2ecf20Sopenharmony_ci------------ 398c2ecf20Sopenharmony_ci 408c2ecf20Sopenharmony_ciOn success 0 is returned and :c:type:`ca_caps` is filled. 418c2ecf20Sopenharmony_ci 428c2ecf20Sopenharmony_ciOn error, -1 is returned and the ``errno`` variable is set 438c2ecf20Sopenharmony_ciappropriately. 448c2ecf20Sopenharmony_ci 458c2ecf20Sopenharmony_ciThe generic error codes are described at the 468c2ecf20Sopenharmony_ci:ref:`Generic Error Codes <gen-errors>` chapter. 47