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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 /include/media | |
| parent | aaf578e12e06160792ae5dd71dee3b074e0f9475 (diff) | |
| download | linux-b2fe22d0cf64708c50c26f11b3da8b79809c699b.tar.bz2 | |
[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 'include/media')
| -rw-r--r-- | include/media/v4l2-dev.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h index a122b1bd40f9..5272aeec0cec 100644 --- a/include/media/v4l2-dev.h +++ b/include/media/v4l2-dev.h @@ -25,7 +25,8 @@ #define VFL_TYPE_RADIO 2 #define VFL_TYPE_SUBDEV 3 #define VFL_TYPE_SDR 4 -#define VFL_TYPE_MAX 5 +#define VFL_TYPE_TOUCH 5 +#define VFL_TYPE_MAX 6 /* Is this a receiver, transmitter or mem-to-mem? */ /* Ignored for VFL_TYPE_SUBDEV. */ @@ -294,6 +295,7 @@ struct video_device * - %VFL_TYPE_RADIO - A radio card * - %VFL_TYPE_SUBDEV - A subdevice * - %VFL_TYPE_SDR - Software Defined Radio + * - %VFL_TYPE_TOUCH - A touch sensor * * .. note:: * |