.. -*- coding: utf-8; mode: rst -*- .. _CA_SET_PID: ========== CA_SET_PID ========== Name ---- CA_SET_PID Synopsis -------- .. c:function:: int ioctl(fd, CA_SET_PID, struct ca_pid *pid) :name: CA_SET_PID Arguments --------- ``fd`` File descriptor returned by a previous call to :c:func:`open() `. ``pid`` Pointer to struct :c:type:`ca_pid`. .. c:type:: ca_pid .. flat-table:: struct ca_pid :header-rows: 1 :stub-columns: 0 - - unsigned int - pid - Program ID - - int - index - PID index. Use -1 to disable. Description ----------- .. note:: This ioctl is undocumented. Documentation is welcome. Return Value ------------ On success 0 is returned, on error -1 and the ``errno`` variable is set appropriately. The generic error codes are described at the :ref:`Generic Error Codes ` chapter.