XLibre/xf86-input-evdev
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If scrollwheels are found, bump the button number by 4 (or up to 7).

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Scrollwheel data is always posted as buttons, so we need to advertise at least
enough buttons to accommodate for 6/7 (horizontal wheel).

Note that this may mean that if you have a device that has scroll wheels and
axes, but no buttons, it may be interpreted as a mouse.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This commit is contained in:
Peter Hutterer
2009-02-26 12:09:33 +10:00
parent c9cab83bac
commit 178435832f
1 changed files with 5 additions and 0 deletions
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5
src/evdev.c
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@@ -1450,6 +1450,11 @@ EvdevProbe(InputInfoPtr pInfo)
TestBit(REL_HWHEEL, pEvdev->rel_bitmask)) {
xf86Msg(X_INFO, "%s: Found scroll wheel(s)\n", pInfo->name);
has_scroll = TRUE;
if (!num_buttons)
xf86Msg(X_INFO, "%s: Forcing buttons for scroll wheel(s)\n",
pInfo->name);
num_buttons = (num_buttons < 3) ? 7 : num_buttons + 4;
pEvdev->buttons = num_buttons;
}
if (TestBit(ABS_X, pEvdev->abs_bitmask) &&