Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
at v4.8-rc3 59 lines 835 B view raw
1.. -*- coding: utf-8; mode: rst -*- 2 3.. _CA_SEND_MSG: 4 5=========== 6CA_SEND_MSG 7=========== 8 9Name 10---- 11 12CA_SEND_MSG 13 14 15Synopsis 16-------- 17 18.. cpp:function:: int ioctl(fd, int request = CA_SEND_MSG, ca_msg_t *) 19 20 21Arguments 22--------- 23 24.. flat-table:: 25 :header-rows: 0 26 :stub-columns: 0 27 28 29 - .. row 1 30 31 - int fd 32 33 - File descriptor returned by a previous call to open(). 34 35 - .. row 2 36 37 - int request 38 39 - Equals CA_SEND_MSG for this command. 40 41 - .. row 3 42 43 - ca_msg_t \* 44 45 - Undocumented. 46 47 48Description 49----------- 50 51This ioctl is undocumented. Documentation is welcome. 52 53 54Return Value 55------------ 56 57On success 0 is returned, on error -1 and the ``errno`` variable is set 58appropriately. The generic error codes are described at the 59:ref:`Generic Error Codes <gen-errors>` chapter.