+ case VIDIOC_S_CTRL:
+ return tvaudio_set_ctrl(chip, arg);
+
+ case VIDIOC_INT_G_AUDIO_ROUTING:
+ {
+ struct v4l2_routing *rt = arg;
+
+ rt->input = chip->input;
+ rt->output = 0;
+ break;
+ }
+
+ case VIDIOC_INT_S_AUDIO_ROUTING:
+ {
+ struct v4l2_routing *rt = arg;
+
+ if (!(desc->flags & CHIP_HAS_INPUTSEL) || rt->input >= 4)
+ return -EINVAL;
+ /* There are four inputs: tuner, radio, extern and intern. */
+ chip->input = rt->input;
+ if (chip->muted)
+ break;
+ chip_write_masked(chip, desc->inputreg,
+ desc->inputmap[chip->input], desc->inputmask);
+ break;
+ }
+