media: vivid: add instance number to input/output names

Add the instance number before the input or output number.
So "HDMI 1" becomes "HDMI 000-1".

This is helps identifying which input or output belongs to
which vivid instance.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

drivers/media/test-drivers/vivid/vivid-vid-cap.c

@@ -1073,13 +1073,13 @@ int vidioc_enum_input(struct file *file, void *priv,
 	inp->type = V4L2_INPUT_TYPE_CAMERA;
 	switch (dev->input_type[inp->index]) {
 	case WEBCAM:
-		snprintf(inp->name, sizeof(inp->name), "Webcam %u",
-				dev->input_name_counter[inp->index]);
+		snprintf(inp->name, sizeof(inp->name), "Webcam %03u-%u",
+			 dev->inst, dev->input_name_counter[inp->index]);
 		inp->capabilities = 0;
 		break;
 	case TV:
-		snprintf(inp->name, sizeof(inp->name), "TV %u",
-				dev->input_name_counter[inp->index]);
+		snprintf(inp->name, sizeof(inp->name), "TV %03u-%u",
+			 dev->inst, dev->input_name_counter[inp->index]);
 		inp->type = V4L2_INPUT_TYPE_TUNER;
 		inp->std = V4L2_STD_ALL;
 		if (dev->has_audio_inputs)
@@ -1087,16 +1087,16 @@ int vidioc_enum_input(struct file *file, void *priv,
 		inp->capabilities = V4L2_IN_CAP_STD;
 		break;
 	case SVID:
-		snprintf(inp->name, sizeof(inp->name), "S-Video %u",
-				dev->input_name_counter[inp->index]);
+		snprintf(inp->name, sizeof(inp->name), "S-Video %03u-%u",
+			 dev->inst, dev->input_name_counter[inp->index]);
 		inp->std = V4L2_STD_ALL;
 		if (dev->has_audio_inputs)
 			inp->audioset = (1 << ARRAY_SIZE(vivid_audio_inputs)) - 1;
 		inp->capabilities = V4L2_IN_CAP_STD;
 		break;
 	case HDMI:
-		snprintf(inp->name, sizeof(inp->name), "HDMI %u",
-				dev->input_name_counter[inp->index]);
+		snprintf(inp->name, sizeof(inp->name), "HDMI %03u-%u",
+			 dev->inst, dev->input_name_counter[inp->index]);
 		inp->capabilities = V4L2_IN_CAP_DV_TIMINGS;
 		if (dev->edid_blocks == 0 ||
 		    dev->dv_timings_signal_mode[dev->input] == NO_SIGNAL)

drivers/media/test-drivers/vivid/vivid-vid-out.c

@@ -966,16 +966,16 @@ int vidioc_enum_output(struct file *file, void *priv,
 	out->type = V4L2_OUTPUT_TYPE_ANALOG;
 	switch (dev->output_type[out->index]) {
 	case SVID:
-		snprintf(out->name, sizeof(out->name), "S-Video %u",
-				dev->output_name_counter[out->index]);
+		snprintf(out->name, sizeof(out->name), "S-Video %03u-%u",
+			 dev->inst, dev->output_name_counter[out->index]);
 		out->std = V4L2_STD_ALL;
 		if (dev->has_audio_outputs)
 			out->audioset = (1 << ARRAY_SIZE(vivid_audio_outputs)) - 1;
 		out->capabilities = V4L2_OUT_CAP_STD;
 		break;
 	case HDMI:
-		snprintf(out->name, sizeof(out->name), "HDMI %u",
-				dev->output_name_counter[out->index]);
+		snprintf(out->name, sizeof(out->name), "HDMI %03u-%u",
+			 dev->inst, dev->output_name_counter[out->index]);
 		out->capabilities = V4L2_OUT_CAP_DV_TIMINGS;
 		break;
 	}