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| author | Nick Dyer <nick@shmanahar.org> | 2016-07-18 18:10:30 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2016-08-23 16:28:04 -0300 |
| commit | b2fe22d0cf64708c50c26f11b3da8b79809c699b (patch) | |
| tree | de7ba78bc3260c2af09a9ec6a2065497e8ea3088 /drivers/media/media-entity.c | |
| parent | aaf578e12e06160792ae5dd71dee3b074e0f9475 (diff) | |
| download | blackbird-op-linux-b2fe22d0cf64708c50c26f11b3da8b79809c699b.tar.gz blackbird-op-linux-b2fe22d0cf64708c50c26f11b3da8b79809c699b.zip | |
[media] v4l2-core: Add support for touch devices
Some touch controllers send out touch data in a similar way to a
greyscale frame grabber.
Add new device type VFL_TYPE_TOUCH:
- This uses a new device prefix v4l-touch for these devices, to stop
generic capture software from treating them as webcams. Otherwise,
touch is treated similarly to video capture.
- Add V4L2_INPUT_TYPE_TOUCH
- Add MEDIA_INTF_T_V4L_TOUCH
- Add V4L2_CAP_TOUCH to indicate device is a touch device
Add formats:
- V4L2_TCH_FMT_DELTA_TD16 for signed 16-bit touch deltas
- V4L2_TCH_FMT_DELTA_TD08 for signed 16-bit touch deltas
- V4L2_TCH_FMT_TU16 for unsigned 16-bit touch data
- V4L2_TCH_FMT_TU08 for unsigned 8-bit touch data
This support will be used by:
- Atmel maXTouch (atmel_mxt_ts)
- Synaptics RMI4.
- sur40
Signed-off-by: Nick Dyer <nick@shmanahar.org>
Tested-by: Chris Healy <cphealy@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/media/media-entity.c')
| -rw-r--r-- | drivers/media/media-entity.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/media/media-entity.c b/drivers/media/media-entity.c index d8a2299f0c2a..9014362e904d 100644 --- a/drivers/media/media-entity.c +++ b/drivers/media/media-entity.c @@ -65,6 +65,8 @@ static inline const char *intf_type(struct media_interface *intf) return "v4l-subdev"; case MEDIA_INTF_T_V4L_SWRADIO: return "v4l-swradio"; + case MEDIA_INTF_T_V4L_TOUCH: + return "v4l-touch"; case MEDIA_INTF_T_ALSA_PCM_CAPTURE: return "alsa-pcm-capture"; case MEDIA_INTF_T_ALSA_PCM_PLAYBACK: |
