On 06/23/2016 12:08 AM, Nick Dyer wrote: > This is a series of patches to add output of raw touch diagnostic data via V4L2 > to the Atmel maXTouch and Synaptics RMI4 drivers. > > It's a rewrite of the previous implementation which output via debugfs: it now > uses a V4L2 device in a similar way to the sur40 driver. > > We have a utility which can read the data and display it in a useful format: > https://github.com/ndyer/heatmap/commits/heatmap-v4l > > These patches are also available from > https://github.com/ndyer/linux/commits/v4l-touch-2016-06-22 > > Changes in v5 (Hans Verkuil review): > - Update v4l2-core: > - Add VFL_TYPE_TOUCH, V4L2_BUF_TYPE_TOUCH_CAPTURE and V4L2_CAP_TOUCH The use of V4L2_CAP_TOUCH and V4L2_BUF_TYPE_TOUCH_CAPTURE is very inconsistent. What is the rationale of adding V4L2_BUF_TYPE_TOUCH_CAPTURE? I can't remember asking for it. And wouldn't the use of V4L2_BUF_TYPE_TOUCH_CAPTURE break userspace for sur40? I'm ambiguous towards having a V4L2_BUF_TYPE_TOUCH_CAPTURE, to be honest. I would also recommend renaming V4L2_CAP_TOUCH to V4L2_CAP_TOUCH_CAPTURE. I can imagine an embedded usb gadget device that outputs touch data to a PC. Regards, Hans > - Change V4L2_INPUT_TYPE_TOUCH_SENSOR to V4L2_INPUT_TYPE_TOUCH > - Improve DocBook documentation > - Add FMT definitions for touch data > - Note this will need the latest version of the heatmap util > - Synaptics RMI4 driver: > - Remove some less important non full frame report types > - Switch report type names to const char * array > - Move a static array to inside context struct > - Split sur40 changes to a separate commit > > Changes in v4: > - Address nits from the input side in atmel_mxt_ts patches (Dmitry Torokhov) > - Add Synaptics RMI4 F54 support patch > > Changes in v3: > - Address V4L2 review comments from Hans Verkuil > - Run v4l-compliance and fix all issues - needs minor patch here: > https://github.com/ndyer/v4l-utils/commit/cf50469773f > > Changes in v2: > - Split pixfmt changes into separate commit and add DocBook > - Introduce VFL_TYPE_TOUCH_SENSOR and /dev/v4l-touch > - Remove "single node" support for now, it may be better to treat it as > metadata later > - Explicitly set VFL_DIR_RX > - Fix Kconfig > > -- > To unsubscribe from this list: send the line "unsubscribe linux-media" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
