[PATCH 0/1] Allow negative attack/fade ramps

[Kalle Jokiniemi <kalle.jokiniemi@jolla.com>]

Hi,

We're using ff-memless in Sailfish OS for vibrator / haptics support,
and I've noticed this annoying issue with the periodic force feedback effects
that declining attack ramps don't work with it properly.

I.e This kind of effect:

\
 \
  '-------------.
                 \
                  \

turns into something like this:

--+
  |
  +-------------.
                 \
                  \

It turned out to be quite simple fix to get declining attack ramps
and rising fades to behave linearly. Please check, comment, and apply
if seen fit.

Kalle Jokiniemi (1):
  input: ff-memless: Allow negative attack / fade ramps

 drivers/input/ff-memless.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

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1.9.1