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| author | Gregory Nutt <gnutt@nuttx.org> | 2014-07-10 08:42:25 -0600 |
|---|---|---|
| committer | Gregory Nutt <gnutt@nuttx.org> | 2014-07-10 08:42:25 -0600 |
| commit | 17b702fc22453e1e5dd577355da802014d3dc98d (patch) | |
| tree | dabba34559bc7899b784e7e0302591e3c4c6713d /nuttx/drivers/input | |
| parent | 9c95662cd3e400ea0d0251240e82750de655657c (diff) | |
| download | px4-nuttx-17b702fc22453e1e5dd577355da802014d3dc98d.tar.gz px4-nuttx-17b702fc22453e1e5dd577355da802014d3dc98d.tar.bz2 px4-nuttx-17b702fc22453e1e5dd577355da802014d3dc98d.zip | |
SAMA5D4-EK: The maXTouch controller and test is now enabled by default in the NSH configuration
Diffstat (limited to 'nuttx/drivers/input')
| -rw-r--r-- | nuttx/drivers/input/mxt.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/nuttx/drivers/input/mxt.c b/nuttx/drivers/input/mxt.c index 653973017..0105bf119 100644 --- a/nuttx/drivers/input/mxt.c +++ b/nuttx/drivers/input/mxt.c @@ -761,6 +761,17 @@ static void mxt_touch_event(FAR struct mxt_dev_s *priv, ivdbg("ndx=%u status=%02x pos(%u,%u) area=%u pressure=%u\n", ndx, status, x, y, area, pressure); + /* The normal sequence that we would see for a touch would be something + * like: + * + * 1. MXT_DETECT + MXT_PRESS + * 2. MXT_DETECT + MXT_AMP + * 3. MXT_DETECT + MXT_MOVE + MXT_AMP + * 4. MXT_RELEASE + * + * So we really only need to check MXT_DETECT to drive this state machine. + */ + /* Is this a loss of contact? */ sample = &priv->sample[ndx]; |