diff options
| author | Henrik Rydberg <rydberg@euromail.se> | 2010-09-22 11:29:07 +0200 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2010-09-22 11:29:07 +0200 |
| commit | 48216fbdad6cc462b056ce1e876edcc664d32a8d (patch) | |
| tree | 0008b59a476f0c89b77e07a0fd76dcf43c470148 /drivers/hid | |
| parent | HID: 3m: Correct touchscreen emulation (diff) | |
| download | linux-48216fbdad6cc462b056ce1e876edcc664d32a8d.tar.xz linux-48216fbdad6cc462b056ce1e876edcc664d32a8d.zip | |
HID: 3m: Adjust major / minor axes to scale
By visual inspection, the reported touch_major and touch_minor axes
are a factor of two too large. Presumably the device actually reports
the width_major and width_minor, which are generally about a factor of
two larger than the touches themselves.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid')
| -rw-r--r-- | drivers/hid/hid-3m-pct.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/hid/hid-3m-pct.c b/drivers/hid/hid-3m-pct.c index 39628e02a428..02d8cd3b1b1b 100644 --- a/drivers/hid/hid-3m-pct.c +++ b/drivers/hid/hid-3m-pct.c @@ -166,16 +166,18 @@ static void mmm_filter_event(struct mmm_data *md, struct input_dev *input) if (f->touch) { /* this finger is on the screen */ int wide = (f->w > f->h); + /* divided by two to match visual scale of touch */ + int major = max(f->w, f->h) >> 1; + int minor = min(f->w, f->h) >> 1; + if (!f->prev_touch) f->id = md->id++; input_event(input, EV_ABS, ABS_MT_TRACKING_ID, f->id); input_event(input, EV_ABS, ABS_MT_POSITION_X, f->x); input_event(input, EV_ABS, ABS_MT_POSITION_Y, f->y); input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide); - input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, - wide ? f->w : f->h); - input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, - wide ? f->h : f->w); + input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major); + input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor); /* touchscreen emulation: pick the oldest contact */ if (!oldest || ((f->id - oldest->id) & (SHRT_MAX + 1))) oldest = f; |