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| author |   Florian Echtler <floe@butterbrot.org> | 2015-05-25 09:04:15 -0300 |
|---|---|---|
| committer |   Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-05-30 11:44:35 -0300 |
| commit | 0cfdfcc1db13c7b6b6f930ac0528d5b010f45220 (patch) | |
| tree | 9a481f5290ceb4ef040134c277e13f66ad584982 /drivers/input/touchscreen/sur40.c | |
| parent | [media] add frame size/frame rate query functions (diff) | |
| download | linux-dev-0cfdfcc1db13c7b6b6f930ac0528d5b010f45220.tar.xz linux-dev-0cfdfcc1db13c7b6b6f930ac0528d5b010f45220.zip | |
[media] add extra debug output, remove noisy warning
Add dev_dbg statements for easier future debugging; also change the warning
about packet ID mismatches to debug output to avoid flooding the logs. This
warning is only important in a very specific/rare use case when trying to
correlate input events with video data.
Signed-off-by: Martin Kaltenbrunner <modin@yuri.at>
Signed-off-by: Florian Echtler <floe@butterbrot.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/input/touchscreen/sur40.c')
| -rw-r--r-- | drivers/input/touchscreen/sur40.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/input/touchscreen/sur40.c b/drivers/input/touchscreen/sur40.c index d860d056cccb..8add986abc82 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: |