Lines Matching refs:hdl
229 * @hdl: The control handler.
239 * also be stored in @hdl->error.
241 int v4l2_ctrl_handler_init(struct v4l2_ctrl_handler *hdl,
246 * @hdl: The control handler.
248 * Does nothing if @hdl == NULL.
250 void v4l2_ctrl_handler_free(struct v4l2_ctrl_handler *hdl);
254 * @hdl: The control handler.
258 * If @hdl == NULL, then this just returns 0.
260 int v4l2_ctrl_handler_setup(struct v4l2_ctrl_handler *hdl);
263 * @hdl: The control handler.
271 * Does nothing if @hdl == NULL.
273 void v4l2_ctrl_handler_log_status(struct v4l2_ctrl_handler *hdl,
278 * @hdl: The control handler.
283 * and @hdl->error is set to the error code (if it wasn't set already).
285 struct v4l2_ctrl *v4l2_ctrl_new_custom(struct v4l2_ctrl_handler *hdl,
289 * @hdl: The control handler.
298 * ID is not known, then NULL is returned and @hdl->error is set to the
305 struct v4l2_ctrl *v4l2_ctrl_new_std(struct v4l2_ctrl_handler *hdl,
310 * @hdl: The control handler.
327 struct v4l2_ctrl *v4l2_ctrl_new_std_menu(struct v4l2_ctrl_handler *hdl,
332 * @hdl: The control handler.
339 struct v4l2_ctrl *v4l2_ctrl_add_ctrl(struct v4l2_ctrl_handler *hdl,
343 * handler @hdl.
344 * @hdl: The control handler.
346 * the @hdl control handler.
349 * In case of an error @hdl->error will be set to the error code (if it
352 int v4l2_ctrl_add_handler(struct v4l2_ctrl_handler *hdl,
364 * @hdl: The control handler.
367 * If @hdl == NULL this will return NULL as well. Will lock the handler so
370 struct v4l2_ctrl *v4l2_ctrl_find(struct v4l2_ctrl_handler *hdl, u32 id);
441 /* Helpers for ioctl_ops. If hdl == NULL then they will all return -EINVAL. */
442 int v4l2_queryctrl(struct v4l2_ctrl_handler *hdl, struct v4l2_queryctrl *qc);
443 int v4l2_querymenu(struct v4l2_ctrl_handler *hdl, struct v4l2_querymenu *qm);
444 int v4l2_g_ctrl(struct v4l2_ctrl_handler *hdl, struct v4l2_control *ctrl);
445 int v4l2_s_ctrl(struct v4l2_ctrl_handler *hdl, struct v4l2_control *ctrl);
446 int v4l2_g_ext_ctrls(struct v4l2_ctrl_handler *hdl, struct v4l2_ext_controls *c);
447 int v4l2_try_ext_ctrls(struct v4l2_ctrl_handler *hdl, struct v4l2_ext_controls *c);
448 int v4l2_s_ext_ctrls(struct v4l2_ctrl_handler *hdl, struct v4l2_ext_controls *c);