Signed-off-by: Martin Kaltenbrunner <mo...@yuri.at>
Signed-off-by: Florian Echtler <f...@butterbrot.org>
---
drivers/input/touchscreen/sur40.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/input/touchscreen/sur40.c
b/drivers/input/touchscreen/sur40.c
index d860d05..8add986 100644
--- a/drivers/input/touchscreen/sur40.c
+++ b/drivers/input/touchscreen/sur40.c
@@ -342,7 +342,7 @@ static void sur40_poll(struct input_polled_dev *polldev)
* instead of at the end.
*/
if (packet_id != header->packet_id)
- dev_warn(sur40->dev, "packet ID mismatch\n");
+ dev_dbg(sur40->dev, "packet ID mismatch\n");
packet_blobs = result / sizeof(struct sur40_blob);
dev_dbg(sur40->dev, "received %d blobs\n", packet_blobs);
@@ -389,6 +389,8 @@ static void sur40_process_video(struct sur40_state *sur40)
list_del(&new_buf->list);
spin_unlock(&sur40->qlock);
+ dev_dbg(sur40->dev, "buffer acquired\n");
+
/* retrieve data via bulk read */
result = usb_bulk_msg(sur40->usbdev,
usb_rcvbulkpipe(sur40->usbdev, VIDEO_ENDPOINT),
@@ -416,6 +418,8 @@ static void sur40_process_video(struct sur40_state *sur40)
goto err_poll;
}
+ dev_dbg(sur40->dev, "header acquired\n");
+
sgt = vb2_dma_sg_plane_desc(&new_buf->vb, 0);
result = usb_sg_init(&sgr, sur40->usbdev,
@@ -432,11 +436,14 @@ static void sur40_process_video(struct sur40_state *sur40)
goto err_poll;
}
+ dev_dbg(sur40->dev, "image acquired\n");
+
/* mark as finished */
v4l2_get_timestamp(&new_buf->vb.v4l2_buf.timestamp);
new_buf->vb.v4l2_buf.sequence = sur40->sequence++;
new_buf->vb.v4l2_buf.field = V4L2_FIELD_NONE;
vb2_buffer_done(&new_buf->vb, VB2_BUF_STATE_DONE);
+ dev_dbg(sur40->dev, "buffer marked done\n");
return;
err_poll:
--
1.9.1
--
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