18c2ecf20Sopenharmony_ci.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later 28c2ecf20Sopenharmony_ci.. c:namespace:: DTV.video 38c2ecf20Sopenharmony_ci 48c2ecf20Sopenharmony_ci.. _video_fwrite: 58c2ecf20Sopenharmony_ci 68c2ecf20Sopenharmony_ci================= 78c2ecf20Sopenharmony_cidvb video write() 88c2ecf20Sopenharmony_ci================= 98c2ecf20Sopenharmony_ci 108c2ecf20Sopenharmony_ciName 118c2ecf20Sopenharmony_ci---- 128c2ecf20Sopenharmony_ci 138c2ecf20Sopenharmony_cidvb video write() 148c2ecf20Sopenharmony_ci 158c2ecf20Sopenharmony_ci.. attention:: This ioctl is deprecated. 168c2ecf20Sopenharmony_ci 178c2ecf20Sopenharmony_ciSynopsis 188c2ecf20Sopenharmony_ci-------- 198c2ecf20Sopenharmony_ci 208c2ecf20Sopenharmony_ci.. c:function:: size_t write(int fd, const void *buf, size_t count) 218c2ecf20Sopenharmony_ci 228c2ecf20Sopenharmony_ciArguments 238c2ecf20Sopenharmony_ci--------- 248c2ecf20Sopenharmony_ci 258c2ecf20Sopenharmony_ci.. flat-table:: 268c2ecf20Sopenharmony_ci :header-rows: 0 278c2ecf20Sopenharmony_ci :stub-columns: 0 288c2ecf20Sopenharmony_ci 298c2ecf20Sopenharmony_ci - .. row 1 308c2ecf20Sopenharmony_ci 318c2ecf20Sopenharmony_ci - int fd 328c2ecf20Sopenharmony_ci 338c2ecf20Sopenharmony_ci - File descriptor returned by a previous call to open(). 348c2ecf20Sopenharmony_ci 358c2ecf20Sopenharmony_ci - .. row 2 368c2ecf20Sopenharmony_ci 378c2ecf20Sopenharmony_ci - void \*buf 388c2ecf20Sopenharmony_ci 398c2ecf20Sopenharmony_ci - Pointer to the buffer containing the PES data. 408c2ecf20Sopenharmony_ci 418c2ecf20Sopenharmony_ci - .. row 3 428c2ecf20Sopenharmony_ci 438c2ecf20Sopenharmony_ci - size_t count 448c2ecf20Sopenharmony_ci 458c2ecf20Sopenharmony_ci - Size of buf. 468c2ecf20Sopenharmony_ci 478c2ecf20Sopenharmony_ciDescription 488c2ecf20Sopenharmony_ci----------- 498c2ecf20Sopenharmony_ci 508c2ecf20Sopenharmony_ciThis system call can only be used if VIDEO_SOURCE_MEMORY is selected 518c2ecf20Sopenharmony_ciin the ioctl call VIDEO_SELECT_SOURCE. The data provided shall be in 528c2ecf20Sopenharmony_ciPES format, unless the capability allows other formats. If O_NONBLOCK 538c2ecf20Sopenharmony_ciis not specified the function will block until buffer space is 548c2ecf20Sopenharmony_ciavailable. The amount of data to be transferred is implied by count. 558c2ecf20Sopenharmony_ci 568c2ecf20Sopenharmony_ciReturn Value 578c2ecf20Sopenharmony_ci------------ 588c2ecf20Sopenharmony_ci 598c2ecf20Sopenharmony_ci.. flat-table:: 608c2ecf20Sopenharmony_ci :header-rows: 0 618c2ecf20Sopenharmony_ci :stub-columns: 0 628c2ecf20Sopenharmony_ci 638c2ecf20Sopenharmony_ci - .. row 1 648c2ecf20Sopenharmony_ci 658c2ecf20Sopenharmony_ci - ``EPERM`` 668c2ecf20Sopenharmony_ci 678c2ecf20Sopenharmony_ci - Mode VIDEO_SOURCE_MEMORY not selected. 688c2ecf20Sopenharmony_ci 698c2ecf20Sopenharmony_ci - .. row 2 708c2ecf20Sopenharmony_ci 718c2ecf20Sopenharmony_ci - ``ENOMEM`` 728c2ecf20Sopenharmony_ci 738c2ecf20Sopenharmony_ci - Attempted to write more data than the internal buffer can hold. 748c2ecf20Sopenharmony_ci 758c2ecf20Sopenharmony_ci - .. row 3 768c2ecf20Sopenharmony_ci 778c2ecf20Sopenharmony_ci - ``EBADF`` 788c2ecf20Sopenharmony_ci 798c2ecf20Sopenharmony_ci - fd is not a valid open file descriptor. 80